A	ADM1	first-order administrative division	a primary administrative division of a country, such as a state in the United States
A	ADM1H	historical first-order administrative division	a former first-order administrative division
A	ADM2	second-order administrative division	a subdivision of a first-order administrative division
A	ADM2H	historical second-order administrative division	a former second-order administrative division
A	ADM3	third-order administrative division	a subdivision of a second-order administrative division
A	ADM3H	historical third-order administrative division	a former third-order administrative division
A	ADM4	fourth-order administrative division	a subdivision of a third-order administrative division
A	ADM4H	historical fourth-order administrative division	a former fourth-order administrative division
A	ADM5	fifth-order administrative division	a subdivision of a fourth-order administrative division
A	ADMD	administrative division	an administrative division of a country, undifferentiated as to administrative level
A	ADMDH	historical administrative division 	a former administrative division of a political entity, undifferentiated as to administrative level
A	LTER	leased area	a tract of land leased to another country, usually for military installations
A	PCL	political entity	
A	PCLD	dependent political entity	
A	PCLF	freely associated state	
A	PCLH	historical political entity	a former political entity
A	PCLI	independent political entity	
A	PCLIX	section of independent political entity	
A	PCLS	semi-independent political entity	
A	PRSH	parish	an ecclesiastical district
A	TERR	territory	
A	ZN	zone	
A	ZNB	buffer zone	a zone recognized as a buffer between two nations in which military presence is minimal or absent
H	AIRS	seaplane landing area	a place on a waterbody where floatplanes land and take off
H	ANCH	anchorage	an area where vessels may anchor
H	BAY	bay	a coastal indentation between two capes or headlands, larger than a cove but smaller than a gulf
H	BAYS	bays	coastal indentations between two capes or headlands, larger than a cove but smaller than a gulf
H	BGHT	bight(s)	an open body of water forming a slight recession in a coastline
H	BNK	bank(s)	an elevation, typically located on a shelf, over which the depth of water is relatively shallow but sufficient for most surface navigation
H	BNKR	stream bank	a sloping margin of a stream channel which normally confines the stream to its channel on land
H	BNKX	section of bank	
H	BOG	bog(s)	a wetland characterized by peat forming sphagnum moss, sedge, and other acid-water plants
H	CAPG	icecap	a dome-shaped mass of glacial ice covering an area of mountain summits or other high lands; smaller than an ice sheet
H	CHN	channel	the deepest part of a stream, bay, lagoon, or strait, through which the main current flows
H	CHNL	lake channel(s)	that part of a lake having water deep enough for navigation between islands, shoals, etc.
H	CHNM	marine channel	that part of a body of water deep enough for navigation through an area otherwise not suitable
H	CHNN	navigation channel	a buoyed channel of sufficient depth for the safe navigation of vessels
H	CNFL	confluence	a place where two or more streams or intermittent streams flow together
H	CNL	canal	an artificial watercourse
H	CNLA	aqueduct	a conduit used to carry water
H	CNLB	canal bend	a conspicuously curved or bent section of a canal
H	CNLD	drainage canal	an artificial waterway carrying water away from a wetland or from drainage ditches
H	CNLI	irrigation canal	a canal which serves as a main conduit for irrigation water
H	CNLN	navigation canal(s)	a watercourse constructed for navigation of vessels
H	CNLQ	abandoned canal	
H	CNLSB	underground irrigation canal(s)	a gently inclined underground tunnel bringing water for irrigation from aquifers
H	CNLX	section of canal	
H	COVE	cove(s)	a small coastal indentation, smaller than a bay
H	CRKT	tidal creek(s)	a meandering channel in a coastal wetland subject to bi-directional tidal currents
H	CRNT	current	a horizontal flow of water in a given direction with uniform velocity
H	CUTF	cutoff	a channel formed as a result of a stream cutting through a meander neck
H	DCK	dock(s)	a waterway between two piers, or cut into the land for the berthing of ships
H	DCKB	docking basin	a part of a harbor where ships dock
H	DOMG	icecap dome	a comparatively elevated area on an icecap
H	DPRG	icecap depression	a comparatively depressed area on an icecap
H	DTCH	ditch	a small artificial watercourse dug for draining or irrigating the land
H	DTCHD	drainage ditch	a ditch which serves to drain the land
H	DTCHI	irrigation ditch	a ditch which serves to distribute irrigation water
H	DTCHM	ditch mouth(s)	an area where a drainage ditch enters a lagoon, lake or bay
H	ESTY	estuary	a funnel-shaped stream mouth or embayment where fresh water mixes with sea water under tidal influences
H	FISH	fishing area	a fishing ground, bank or area where fishermen go to catch fish
H	FJD	fjord	a long, narrow, steep-walled, deep-water arm of the sea at high latitudes, usually along mountainous coasts
H	FJDS	fjords	long, narrow, steep-walled, deep-water arms of the sea at high latitudes, usually along mountainous coasts
H	FLLS	waterfall(s)	a perpendicular or very steep descent of the water of a stream
H	FLLSX	section of waterfall(s)	
H	FLTM	mud flat(s)	a relatively level area of mud either between high and low tide lines, or subject to flooding
H	FLTT	tidal flat(s)	a large flat area of mud or sand attached to the shore and alternately covered and uncovered by the tide
H	GLCR	glacier(s)	a mass of ice, usually at high latitudes or high elevations, with sufficient thickness to flow away from the source area in lobes, tongues, or masses
H	GULF	gulf	a large recess in the coastline, larger than a bay
H	GYSR	geyser	a type of hot spring with intermittent eruptions of jets of hot water and steam
H	HBR	harbor(s)	a haven or space of deep water so sheltered by the adjacent land as to afford a safe anchorage for ships
H	HBRX	section of harbor	
H	INLT	inlet	a narrow waterway extending into the land, or connecting a bay or lagoon with a larger body of water
H	INLTQ	former inlet	an inlet which has been filled in, or blocked by deposits
H	LBED	lake bed(s)	a dried up or drained area of a former lake
H	LGN	lagoon	a shallow coastal waterbody, completely or partly separated from a larger body of water by a barrier island, coral reef or other depositional feature
H	LGNS	lagoons	shallow coastal waterbodies, completely or partly separated from a larger body of water by a barrier island, coral reef or other depositional feature
H	LGNX	section of lagoon	
H	LK	lake	a large inland body of standing water
H	LKC	crater lake	a lake in a crater or caldera
H	LKI	intermittent lake	
H	LKN	salt lake	an inland body of salt water with no outlet
H	LKNI	intermittent salt lake	
H	LKO	oxbow lake	a crescent-shaped lake commonly found adjacent to meandering streams
H	LKOI	intermittent oxbow lake	
H	LKS	lakes	large inland bodies of standing water
H	LKSB	underground lake	a standing body of water in a cave
H	LKSC	crater lakes	lakes in a crater or caldera
H	LKSI	intermittent lakes	
H	LKSN	salt lakes	inland bodies of salt water with no outlet
H	LKSNI	intermittent salt lakes	
H	LKX	section of lake	
H	MFGN	salt evaporation ponds	diked salt ponds used in the production of solar evaporated salt
H	MGV	mangrove swamp	a tropical tidal mud flat characterized by mangrove vegetation
H	MOOR	moor(s)	an area of open ground overlaid with wet peaty soils
H	MRSH	marsh(es)	a wetland dominated by grass-like vegetation
H	MRSHN	salt marsh	a flat area, subject to periodic salt water inundation, dominated by grassy salt-tolerant plants
H	NRWS	narrows	a navigable narrow part of a bay, strait, river, etc.
H	OCN	ocean	one of the major divisions of the vast expanse of salt water covering part of the earth
H	OVF	overfalls	an area of breaking waves caused by the meeting of currents or by waves moving against the current
H	PND	pond	a small standing waterbody
H	PNDI	intermittent pond	
H	PNDN	salt pond	a small standing body of salt water often in a marsh or swamp, usually along a seacoast
H	PNDNI	intermittent salt pond(s)	
H	PNDS	ponds	small standing waterbodies
H	PNDSF	fishponds	ponds or enclosures in which fish are kept or raised
H	PNDSI	intermittent ponds	
H	PNDSN	salt ponds	small standing bodies of salt water often in a marsh or swamp, usually along a seacoast
H	POOL	pool(s)	a small and comparatively still, deep part of a larger body of water such as a stream or harbor; or a small body of standing water
H	POOLI	intermittent pool	
H	RCH	reach	a straight section of a navigable stream or channel between two bends
H	RDGG	icecap ridge	a linear elevation on an icecap
H	RDST	roadstead	an open anchorage affording less protection than a harbor
H	RF	reef(s)	a surface-navigation hazard composed of consolidated material
H	RFC	coral reef(s)	a surface-navigation hazard composed of coral
H	RFX	section of reef	
H	RPDS	rapids	a turbulent section of a stream associated with a steep, irregular stream bed
H	RSV	reservoir(s)	an artificial pond or lake
H	RSVI	intermittent reservoir	
H	RSVT	water tank	a contained pool or tank of water at, below, or above ground level
H	RVN	ravine(s)	a small, narrow, deep, steep-sided stream channel, smaller than a gorge
H	SBKH	sabkha(s)	a salt flat or salt encrusted plain subject to periodic inundation from flooding or high tides
H	SD	sound	a long arm of the sea forming a channel between the mainland and an island or islands; or connecting two larger bodies of water
H	SEA	sea	a large body of salt water more or less confined by continuous land or chains of islands forming a subdivision of an ocean
H	SHOL	shoal(s)	a surface-navigation hazard composed of unconsolidated material
H	SILL	sill	the low part of an underwater gap or saddle separating basins, including a similar feature at the mouth of a fjord
H	SPNG	spring(s)	a place where ground water flows naturally out of the ground
H	SPNS	sulphur spring(s)	a place where sulphur ground water flows naturally out of the ground
H	SPNT	hot spring(s)	a place where hot ground water flows naturally out of the ground
H	STM	stream	a body of running water moving to a lower level in a channel on land
H	STMA	anabranch	a diverging branch flowing out of a main stream and rejoining it downstream
H	STMB	stream bend	a conspicuously curved or bent segment of a stream
H	STMC	canalized stream	a stream that has been substantially ditched, diked, or straightened
H	STMD	distributary(-ies)	a branch which flows away from the main stream, as in a delta or irrigation canal
H	STMH	headwaters	the source and upper part of a stream, including the upper drainage basin
H	STMI	intermittent stream	
H	STMIX	section of intermittent stream	
H	STMM	stream mouth(s)	a place where a stream discharges into a lagoon, lake, or the sea
H	STMQ	abandoned watercourse	a former stream or distributary no longer carrying flowing water, but still evident due to lakes, wetland, topographic or vegetation patterns
H	STMS	streams	bodies of running water moving to a lower level in a channel on land
H	STMSB	lost river	a surface stream that disappears into an underground channel, or dries up in an arid area
H	STMX	section of stream	
H	STRT	strait	a relatively narrow waterway, usually narrower and less extensive than a sound, connecting two larger bodies of water
H	SWMP	swamp	a wetland dominated by tree vegetation
H	SYSI	irrigation system	a network of ditches and one or more of the following elements: water supply, reservoir, canal, pump, well, drain, etc.
H	TNLC	canal tunnel	a tunnel through which a canal passes
H	WAD	wadi	a valley or ravine, bounded by relatively steep banks, which in the rainy season becomes a watercourse; found primarily in North Africa and the Middle East
H	WADB	wadi bend	a conspicuously curved or bent segment of a wadi
H	WADJ	wadi junction	a place where two or more wadies join
H	WADM	wadi mouth	the lower terminus of a wadi where it widens into an adjoining floodplain, depression, or waterbody
H	WADS	wadies	valleys or ravines, bounded by relatively steep banks, which in the rainy season become watercourses; found primarily in North Africa and the Middle East
H	WADX	section of wadi	
H	WHRL	whirlpool	a turbulent, rotating movement of water in a stream
H	WLL	well	a cylindrical hole, pit, or tunnel drilled or dug down to a depth from which water, oil, or gas can be pumped or brought to the surface
H	WLLQ	abandoned well	
H	WLLS	wells	cylindrical holes, pits, or tunnels drilled or dug down to a depth from which water, oil, or gas can be pumped or brought to the surface
H	WTLD	wetland	an area subject to inundation, usually characterized by bog, marsh, or swamp vegetation
H	WTLDI	intermittent wetland	
H	WTRC	watercourse	a natural, well-defined channel produced by flowing water, or an artificial channel designed to carry flowing water
H	WTRH	waterhole(s)	a natural hole, hollow, or small depression that contains water, used by man and animals, especially in arid areas
L	AGRC	agricultural colony	a tract of land set aside for agricultural settlement
L	AMUS	amusement park	Amusement Park are theme parks, adventure parks offering entertainment, similar to funfairs but with a fix location
L	AREA	area	a tract of land without homogeneous character or boundaries
L	BSND	drainage basin	an area drained by a stream
L	BSNP	petroleum basin	an area underlain by an oil-rich structural basin
L	BTL	battlefield	a site of a land battle of historical importance
L	CLG	clearing	an area in a forest with trees removed
L	CMN	common	a park or pasture for community use
L	CNS	concession area	a lease of land by a government for economic development, e.g., mining, forestry
L	COLF	coalfield	a region in which coal deposits of possible economic value occur
L	CONT	continent	continent: Europe, Africa, Asia, North America, South America, Oceania, Antarctica
L	CST	coast	a zone of variable width straddling the shoreline
L	CTRB	business center	a place where a number of businesses are located
L	DEVH	housing development	a tract of land on which many houses of similar design are built according to a development plan
L	FLD	field(s)	an open as opposed to wooded area
L	FLDI	irrigated field(s)	a tract of level or terraced land which is irrigated
L	GASF	gasfield	an area containing a subterranean store of natural gas of economic value
L	GRAZ	grazing area	an area of grasses and shrubs used for grazing
L	GVL	gravel area	an area covered with gravel
L	INDS	industrial area	an area characterized by industrial activity
L	LAND	arctic land	a tract of land in the Arctic
L	LCTY	locality	a minor area or place of unspecified or mixed character and indefinite boundaries
L	MILB	military base	a place used by an army or other armed service for storing arms and supplies, and for accommodating and training troops, a base from which operations can be initiated
L	MNA	mining area	an area of mine sites where minerals and ores are extracted
L	MVA	maneuver area	a tract of land where military field exercises are carried out
L	NVB	naval base	an area used to store supplies, provide barracks for troops and naval personnel, a port for naval vessels, and from which operations are initiated
L	OAS	oasis(-es)	an area in a desert made productive by the availability of water
L	OILF	oilfield	an area containing a subterranean store of petroleum of economic value
L	PEAT	peat cutting area	an area where peat is harvested
L	PRK	park	an area, often of forested land, maintained as a place of beauty, or for recreation
L	PRT	port	a place provided with terminal and transfer facilities for loading and discharging waterborne cargo or passengers, usually located in a harbor
L	QCKS	quicksand	an area where loose sand with water moving through it may become unstable when heavy objects are placed at the surface, causing them to sink
L	RES	reserve	a tract of public land reserved for future use or restricted as to use
L	RESA	agricultural reserve	a tract of land reserved for agricultural reclamation and/or development
L	RESF	forest reserve	a forested area set aside for preservation or controlled use
L	RESH	hunting reserve	a tract of land used primarily for hunting
L	RESN	nature reserve	an area reserved for the maintenance of a natural habitat
L	RESP	palm tree reserve	an area of palm trees where use is controlled
L	RESV	reservation	a tract of land set aside for aboriginal, tribal, or native populations
L	RESW	wildlife reserve	a tract of public land reserved for the preservation of wildlife
L	RGN	region	an area distinguished by one or more observable physical or cultural characteristics
L	RGNE	economic region	a region of a country established for economic development or for statistical purposes
L	RGNH	historical region	a former historic area distinguished by one or more observable physical or cultural characteristics
L	RGNL	lake region	a tract of land distinguished by numerous lakes
L	RNGA	artillery range	a tract of land used for artillery firing practice
L	SALT	salt area	a shallow basin or flat where salt accumulates after periodic inundation
L	SNOW	snowfield	an area of permanent snow and ice forming the accumulation area of a glacier
L	TRB	tribal area	a tract of land used by nomadic or other tribes
P	PPL	populated place	a city, town, village, or other agglomeration of buildings where people live and work
P	PPLA	seat of a first-order administrative division	seat of a first-order administrative division (PPLC takes precedence over PPLA)
P	PPLA2	seat of a second-order administrative division	
P	PPLA3	seat of a third-order administrative division	
P	PPLA4	seat of a fourth-order administrative division	
P	PPLC	capital of a political entity	
P	PPLCH	historical capital of a political entity	a former capital of a political entity
P	PPLF	farm village	a populated place where the population is largely engaged in agricultural activities
P	PPLG	seat of government of a political entity	
P	PPLH	historical populated place	a populated place that no longer exists
P	PPLL	populated locality	an area similar to a locality but with a small group of dwellings or other buildings
P	PPLQ	abandoned populated place	
P	PPLR	religious populated place	a populated place whose population is largely engaged in religious occupations
P	PPLS	populated places	cities, towns, villages, or other agglomerations of buildings where people live and work
P	PPLW	destroyed populated place	a village, town or city destroyed by a natural disaster, or by war
P	PPLX	section of populated place	
P	STLMT	israeli settlement	
R	CSWY	causeway	a raised roadway across wet ground or shallow water
R	OILP	oil pipeline	a pipeline used for transporting oil
R	PRMN	promenade	a place for public walking, usually along a beach front
R	PTGE	portage	a place where boats, goods, etc., are carried overland between navigable waters
R	RD	road	an open way with improved surface for transportation of animals, people and vehicles
R	RDA	ancient road	the remains of a road used by ancient cultures
R	RDB	road bend	a conspicuously curved or bent section of a road
R	RDCUT	road cut	an excavation cut through a hill or ridge for a road
R	RDJCT	road junction	a place where two or more roads join
R	RJCT	railroad junction	a place where two or more railroad tracks join
R	RR	railroad	a permanent twin steel-rail track on which freight and passenger cars move long distances
R	RRQ	abandoned railroad	
R	RTE	caravan route	the route taken by caravans
R	RYD	railroad yard	a system of tracks used for the making up of trains, and switching and storing freight cars
R	ST	street	a paved urban thoroughfare
R	STKR	stock route	a route taken by livestock herds
R	TNL	tunnel	a subterranean passageway for transportation
R	TNLN	natural tunnel	a cave that is open at both ends
R	TNLRD	road tunnel	a tunnel through which a road passes
R	TNLRR	railroad tunnel	a tunnel through which a railroad passes
R	TNLS	tunnels	subterranean passageways for transportation
R	TRL	trail	a path, track, or route used by pedestrians, animals, or off-road vehicles
S	ADMF	administrative facility	a government building
S	AGRF	agricultural facility	a building and/or tract of land used for improving agriculture
S	AIRB	airbase	an area used to store supplies, provide barracks for air force personnel, hangars and runways for aircraft, and from which operations are initiated
S	AIRF	airfield	a place on land where aircraft land and take off; no facilities provided for the commercial handling of passengers and cargo
S	AIRH	heliport	a place where helicopters land and take off
S	AIRP	airport	a place where aircraft regularly land and take off, with runways, navigational aids, and major facilities for the commercial handling of passengers and cargo
S	AIRQ	abandoned airfield	
S	AMTH	amphitheater	an oval or circular structure with rising tiers of seats about a stage or open space
S	ANS	ancient site	a place where archeological remains, old structures, or cultural artifacts are located
S	AQC	aquaculture facility	facility or area for the cultivation of aquatic animals and plants, especially fish, shellfish, and seaweed, in natural or controlled marine or freshwater environments; underwater agriculture
S	ARCH	arch	a natural or man-made structure in the form of an arch
S	ASTR	astronomical station	a point on the earth whose position has been determined by observations of celestial bodies
S	ASYL	asylum	a facility where the insane are cared for and protected
S	ATHF	athletic field	a tract of land used for playing team sports, and athletic track and field events
S	ATM	automatic teller machine	An unattended electronic machine in a public place, connected to a data system and related equipment and activated by a bank customer to obtain cash withdrawals and other banking services. 
S	BANK	bank	A business establishment in which money is kept for saving or commercial purposes or is invested, supplied for loans, or exchanged. 
S	BCN	beacon	a fixed artificial navigation mark
S	BDG	bridge	a structure erected across an obstacle such as a stream, road, etc., in order to carry roads, railroads, and pedestrians across
S	BDGQ	ruined bridge	a destroyed or decayed bridge which is no longer functional
S	BLDG	building(s)	a structure built for permanent use, as a house, factory, etc.
S	BLDO	office building	commercial building where business and/or services are conducted
S	BP	boundary marker	a fixture marking a point along a boundary
S	BRKS	barracks	a building for lodging military personnel
S	BRKW	breakwater	a structure erected to break the force of waves at the entrance to a harbor or port
S	BSTN	baling station	a facility for baling agricultural products
S	BTYD	boatyard	a waterside facility for servicing, repairing, and building small vessels
S	BUR	burial cave(s)	a cave used for human burials
S	BUSTN	bus station	a facility comprising ticket office, platforms, etc. for loading and unloading passengers 
S	BUSTP	bus stop	a place lacking station facilities
S	CARN	cairn	a heap of stones erected as a landmark or for other purposes
S	CAVE	cave(s)	an underground passageway or chamber, or cavity on the side of a cliff
S	CH	church	a building for public Christian worship
S	CMP	camp(s)	a site occupied by tents, huts, or other shelters for temporary use
S	CMPL	logging camp	a camp used by loggers
S	CMPLA	labor camp	a camp used by migrant or temporary laborers
S	CMPMN	mining camp	a camp used by miners
S	CMPO	oil camp	a camp used by oilfield workers
S	CMPQ	abandoned camp	
S	CMPRF	refugee camp	a camp used by refugees
S	CMTY	cemetery	a burial place or ground
S	COMC	communication center	a facility, including buildings, antennae, towers and electronic equipment for receiving and transmitting information
S	CRRL	corral(s)	a pen or enclosure for confining or capturing animals
S	CSNO	casino	a building used for entertainment, especially gambling
S	CSTL	castle	a large fortified building or set of buildings
S	CSTM	customs house	a building in a port where customs and duties are paid, and where vessels are entered and cleared
S	CTHSE	courthouse	a building in which courts of law are held
S	CTRA	atomic center	a facility where atomic research is carried out
S	CTRCM	community center	a facility for community recreation and other activities
S	CTRF	facility center	a place where more than one facility is situated
S	CTRM	medical center	a complex of health care buildings including two or more of the following: hospital, medical school, clinic, pharmacy, doctor's offices, etc.
S	CTRR	religious center	a facility where more than one religious activity is carried out, e.g., retreat, school, monastery, worship
S	CTRS	space center	a facility for launching, tracking, or controlling satellites and space vehicles
S	CVNT	convent	a building where a community of nuns lives in seclusion
S	DAM	dam	a barrier constructed across a stream to impound water
S	DAMQ	ruined dam	a destroyed or decayed dam which is no longer functional
S	DAMSB	sub-surface dam	a dam put down to bedrock in a sand river
S	DARY	dairy	a facility for the processing, sale and distribution of milk or milk products
S	DCKD	dry dock	a dock providing support for a vessel, and means for removing the water so that the bottom of the vessel can be exposed
S	DCKY	dockyard	a facility for servicing, building, or repairing ships
S	DIKE	dike	an earth or stone embankment usually constructed for flood or stream control
S	DIP	diplomatic facility	office, residence, or facility of a foreign government, which may include an embassy, consulate, chancery, office of charge d'affaires, or other diplomatic, economic, military, or cultural mission
S	DPOF	fuel depot	an area where fuel is stored
S	EST	estate(s)	a large commercialized agricultural landholding with associated buildings and other facilities
S	ESTO	oil palm plantation	an estate specializing in the cultivation of oil palm trees
S	ESTR	rubber plantation	an estate which specializes in growing and tapping rubber trees
S	ESTSG	sugar plantation	an estate that specializes in growing sugar cane
S	ESTT	tea plantation	an estate which specializes in growing tea bushes
S	ESTX	section of estate	
S	FCL	facility	a building or buildings housing a center, institute, foundation, hospital, prison, mission, courthouse, etc.
S	FNDY	foundry	a building or works where metal casting is carried out
S	FRM	farm	a tract of land with associated buildings devoted to agriculture
S	FRMQ	abandoned farm	
S	FRMS	farms	tracts of land with associated buildings devoted to agriculture
S	FRMT	farmstead	the buildings and adjacent service areas of a farm
S	FT	fort	a defensive structure or earthworks
S	FY	ferry	a boat or other floating conveyance and terminal facilities regularly used to transport people and vehicles across a waterbody
S	GATE	gate	a controlled access entrance or exit
S	GDN	garden(s)	an enclosure for displaying selected plant or animal life
S	GHAT	ghat	a set of steps leading to a river, which are of religious significance, and at their base is usually a platform for bathing
S	GHSE	guest house	a house used to provide lodging for paying guests
S	GOSP	gas-oil separator plant	a facility for separating gas from oil
S	GOVL	local government office	a facility housing local governmental offices, usually a city, town, or village hall
S	GRVE	grave	a burial site
S	HERM	hermitage	a secluded residence, usually for religious sects
S	HLT	halting place	a place where caravans stop for rest
S	HMSD	homestead	a residence, owner's or manager's, on a sheep or cattle station, woolshed, outcamp, or Aboriginal outstation, specific to Australia and New Zealand 
S	HSE	house(s)	a building used as a human habitation
S	HSEC	country house	a large house, mansion, or chateau, on a large estate
S	HSP	hospital	a building in which sick or injured, especially those confined to bed, are medically treated
S	HSPC	clinic	a medical facility associated with a hospital for outpatients
S	HSPD	dispensary	a building where medical or dental aid is dispensed
S	HSPL	leprosarium	an asylum or hospital for lepers
S	HSTS	historical site	a place of historical importance
S	HTL	hotel	a building providing lodging and/or meals for the public
S	HUT	hut	a small primitive house
S	HUTS	huts	small primitive houses
S	INSM	military installation	a facility for use of and control by armed forces
S	ITTR	research institute	a facility where research is carried out
S	JTY	jetty	a structure built out into the water at a river mouth or harbor entrance to regulate currents and silting
S	LDNG	landing	a place where boats receive or discharge passengers and freight, but lacking most port facilities
S	LEPC	leper colony	a settled area inhabited by lepers in relative isolation
S	LIBR	library	A place in which information resources such as books are kept for reading, reference, or lending.
S	LNDF	landfill	a place for trash and garbage disposal in which the waste is buried between layers of earth to build up low-lying land
S	LOCK	lock(s)	a basin in a waterway with gates at each end by means of which vessels are passed from one water level to another
S	LTHSE	lighthouse	a distinctive structure exhibiting a major navigation light
S	MALL	mall	A large, often enclosed shopping complex containing various stores, businesses, and restaurants usually accessible by common passageways.
S	MAR	marina	a harbor facility for small boats, yachts, etc.
S	MFG	factory	one or more buildings where goods are manufactured, processed or fabricated
S	MFGB	brewery	one or more buildings where beer is brewed
S	MFGC	cannery	a building where food items are canned
S	MFGCU	copper works	a facility for processing copper ore
S	MFGLM	limekiln	a furnace in which limestone is reduced to lime
S	MFGM	munitions plant	a factory where ammunition is made
S	MFGPH	phosphate works	a facility for producing fertilizer
S	MFGQ	abandoned factory	
S	MFGSG	sugar refinery	a facility for converting raw sugar into refined sugar
S	MKT	market	a place where goods are bought and sold at regular intervals
S	ML	mill(s)	a building housing machines for transforming, shaping, finishing, grinding, or extracting products
S	MLM	ore treatment plant	a facility for improving the metal content of ore by concentration
S	MLO	olive oil mill	a mill where oil is extracted from olives
S	MLSG	sugar mill	a facility where sugar cane is processed into raw sugar
S	MLSGQ	former sugar mill	a sugar mill no longer used as a sugar mill
S	MLSW	sawmill	a mill where logs or lumber are sawn to specified shapes and sizes
S	MLWND	windmill	a mill or water pump powered by wind
S	MLWTR	water mill	a mill powered by running water
S	MN	mine(s)	a site where mineral ores are extracted from the ground by excavating surface pits and subterranean passages
S	MNAU	gold mine(s)	a mine where gold ore, or alluvial gold is extracted
S	MNC	coal mine(s)	a mine where coal is extracted
S	MNCR	chrome mine(s)	a mine where chrome ore is extracted
S	MNCU	copper mine(s)	a mine where copper ore is extracted
S	MNFE	iron mine(s)	a mine where iron ore is extracted
S	MNMT	monument	a commemorative structure or statue
S	MNN	salt mine(s)	a mine from which salt is extracted
S	MNQ	abandoned mine	
S	MNQR	quarry(-ies)	a surface mine where building stone or gravel and sand, etc. are extracted
S	MOLE	mole	a massive structure of masonry or large stones serving as a pier or breakwater
S	MSQE	mosque	a building for public Islamic worship
S	MSSN	mission	a place characterized by dwellings, school, church, hospital and other facilities operated by a religious group for the purpose of providing charitable services and to propagate religion
S	MSSNQ	abandoned mission	
S	MSTY	monastery	a building and grounds where a community of monks lives in seclusion
S	MTRO	metro station	metro station (Underground, Tube, or Metro) 
S	MUS	museum	a building where objects of permanent interest in one or more of the arts and sciences are preserved and exhibited
S	NOV	novitiate	a religious house or school where novices are trained
S	NSY	nursery(-ies)	a place where plants are propagated for transplanting or grafting
S	OBPT	observation point	a wildlife or scenic observation point
S	OBS	observatory	a facility equipped for observation of atmospheric or space phenomena
S	OBSR	radio observatory	a facility equipped with an array of antennae for receiving radio waves from space
S	OILJ	oil pipeline junction	a section of an oil pipeline where two or more pipes join together
S	OILQ	abandoned oil well	
S	OILR	oil refinery	a facility for converting crude oil into refined petroleum products
S	OILT	tank farm	a tract of land occupied by large, cylindrical, metal tanks in which oil or liquid petrochemicals are stored
S	OILW	oil well	a well from which oil may be pumped
S	OPRA	opera house	A theater designed chiefly for the performance of operas.
S	PAL	palace	a large stately house, often a royal or presidential residence
S	PGDA	pagoda	a tower-like storied structure, usually a Buddhist shrine
S	PIER	pier	a structure built out into navigable water on piles providing berthing for ships and recreation
S	PKLT	parking lot	an area used for parking vehicles
S	PMPO	oil pumping station	a facility for pumping oil through a pipeline
S	PMPW	water pumping station	a facility for pumping water from a major well or through a pipeline
S	PO	post office	a public building in which mail is received, sorted and distributed
S	PP	police post	a building in which police are stationed
S	PPQ	abandoned police post	
S	PRKGT	park gate	a controlled access to a park
S	PRKHQ	park headquarters	a park administrative facility
S	PRN	prison	a facility for confining prisoners
S	PRNJ	reformatory	a facility for confining, training, and reforming young law offenders
S	PRNQ	abandoned prison	
S	PS	power station	a facility for generating electric power
S	PSH	hydroelectric power station	a building where electricity is generated from water power
S	PSTB	border post	a post or station at an international boundary for the regulation of movement of people and goods
S	PSTC	customs post	a building at an international boundary where customs and duties are paid on goods
S	PSTP	patrol post	a post from which patrols are sent out
S	PYR	pyramid	an ancient massive structure of square ground plan with four triangular faces meeting at a point and used for enclosing tombs
S	PYRS	pyramids	ancient massive structures of square ground plan with four triangular faces meeting at a point and used for enclosing tombs
S	QUAY	quay	a structure of solid construction along a shore or bank which provides berthing for ships and which generally provides cargo handling facilities
S	RDCR	traffic circle	a road junction formed around a central circle about which traffic moves in one direction only
S	RECG	golf course	a recreation field where golf is played
S	RECR	racetrack	a track where races are held
S	REST	restaurant	A place where meals are served to the public
S	RET	store	a building where goods and/or services are offered for sale
S	RHSE	resthouse	a structure maintained for the rest and shelter of travelers
S	RKRY	rookery	a breeding place of a colony of birds or seals
S	RLG	religious site	an ancient site of significant religious importance
S	RLGR	retreat	a place of temporary seclusion, especially for religious groups
S	RNCH	ranch(es)	a large farm specializing in extensive grazing of livestock
S	RSD	railroad siding	a short track parallel to and joining the main track
S	RSGNL	railroad signal	a signal at the entrance of a particular section of track governing the movement of trains
S	RSRT	resort	a specialized facility for vacation, health, or participation sports activities
S	RSTN	railroad station	a facility comprising ticket office, platforms, etc. for loading and unloading train passengers and freight
S	RSTNQ	abandoned railroad station	
S	RSTP	railroad stop	a place lacking station facilities where trains stop to pick up and unload passengers and freight
S	RSTPQ	abandoned railroad stop	
S	RUIN	ruin(s)	a destroyed or decayed structure which is no longer functional
S	SCH	school	building(s) where instruction in one or more branches of knowledge takes place
S	SCHA	agricultural school	a school with a curriculum focused on agriculture
S	SCHC	college	the grounds and buildings of an institution of higher learning
S	SCHL	language school	Language Schools & Institutions
S	SCHM	military school	a school at which military science forms the core of the curriculum
S	SCHN	maritime school	a school at which maritime sciences form the core of the curriculum
S	SCHT	technical school	post-secondary school with a specifically technical or vocational curriculum
S	SECP	State Exam Prep Centre	state exam preparation centres
S	SHPF	sheepfold	a fence or wall enclosure for sheep and other small herd animals
S	SHRN	shrine	a structure or place memorializing a person or religious concept
S	SHSE	storehouse	a building for storing goods, especially provisions
S	SLCE	sluice	a conduit or passage for carrying off surplus water from a waterbody, usually regulated by means of a sluice gate
S	SNTR	sanatorium	a facility where victims of physical or mental disorders are treated
S	SPA	spa	a resort area usually developed around a medicinal spring
S	SPLY	spillway	a passage or outlet through which surplus water flows over, around or through a dam
S	SQR	square	a broad, open, public area near the center of a town or city
S	STBL	stable	a building for the shelter and feeding of farm animals, especially horses
S	STDM	stadium	a structure with an enclosure for athletic games with tiers of seats for spectators
S	STNB	scientific research base	a scientific facility used as a base from which research is carried out or monitored
S	STNC	coast guard station	a facility from which the coast is guarded by armed vessels
S	STNE	experiment station	a facility for carrying out experiments
S	STNF	forest station	a collection of buildings and facilities for carrying out forest management
S	STNI	inspection station	a station at which vehicles, goods, and people are inspected
S	STNM	meteorological station	a station at which weather elements are recorded
S	STNR	radio station	a facility for producing and transmitting information by radio waves
S	STNS	satellite station	a facility for tracking and communicating with orbiting satellites
S	STNW	whaling station	a facility for butchering whales and processing train oil
S	STPS	steps	stones or slabs placed for ease in ascending or descending a steep slope
S	SWT	sewage treatment plant	facility for the processing of sewage and/or wastewater
S	THTR	theater	A building, room, or outdoor structure for the presentation of plays, films, or other dramatic performances
S	TMB	tomb(s)	a structure for interring bodies
S	TMPL	temple(s)	an edifice dedicated to religious worship
S	TNKD	cattle dipping tank	a small artificial pond used for immersing cattle in chemically treated water for disease control
S	TOWR	tower	a high conspicuous structure, typically much higher than its diameter
S	TRANT	transit terminal	facilities for the handling of vehicular freight and passengers
S	TRIG	triangulation station	a point on the earth whose position has been determined by triangulation
S	TRMO	oil pipeline terminal	a tank farm or loading facility at the end of an oil pipeline
S	TWO	temp work office	Temporary Work Offices
S	UNIP	university prep school	University Preparation Schools & Institutions
S	UNIV	university	An institution for higher learning with teaching and research facilities constituting a graduate school and professional schools that award master's degrees and doctorates and an undergraduate division that awards bachelor's degrees.
S	USGE	united states government establishment	a facility operated by the United States Government in Panama
S	VETF	veterinary facility	a building or camp at which veterinary services are available
S	WALL	wall	a thick masonry structure, usually enclosing a field or building, or forming the side of a structure
S	WALLA	ancient wall	the remains of a linear defensive stone structure
S	WEIR	weir(s)	a small dam in a stream, designed to raise the water level or to divert stream flow through a desired channel
S	WHRF	wharf(-ves)	a structure of open rather than solid construction along a shore or a bank which provides berthing for ships and cargo-handling facilities
S	WRCK	wreck	the site of the remains of a wrecked vessel
S	WTRW	waterworks	a facility for supplying potable water through a water source and a system of pumps and filtration beds
S	ZNF	free trade zone	an area, usually a section of a port, where goods may be received and shipped free of customs duty and of most customs regulations
S	ZOO	zoo	a zoological garden or park where wild animals are kept for exhibition
T	ASPH	asphalt lake	a small basin containing naturally occurring asphalt
T	ATOL	atoll(s)	a ring-shaped coral reef which has closely spaced islands on it encircling a lagoon
T	BAR	bar	a shallow ridge or mound of coarse unconsolidated material in a stream channel, at the mouth of a stream, estuary, or lagoon and in the wave-break zone along coasts
T	BCH	beach	a shore zone of coarse unconsolidated sediment that extends from the low-water line to the highest reach of storm waves
T	BCHS	beaches	a shore zone of coarse unconsolidated sediment that extends from the low-water line to the highest reach of storm waves
T	BDLD	badlands	an area characterized by a maze of very closely spaced, deep, narrow, steep-sided ravines, and sharp crests and pinnacles
T	BLDR	boulder field	a high altitude or high latitude bare, flat area covered with large angular rocks
T	BLHL	blowhole(s)	a hole in coastal rock through which sea water is forced by a rising tide or waves and spurted through an outlet into the air
T	BLOW	blowout(s)	a small depression in sandy terrain, caused by wind erosion
T	BNCH	bench	a long, narrow bedrock platform bounded by steeper slopes above and below, usually overlooking a waterbody
T	BUTE	butte(s)	a small, isolated, usually flat-topped hill with steep sides
T	CAPE	cape	a land area, more prominent than a point, projecting into the sea and marking a notable change in coastal direction
T	CFT	cleft(s)	a deep narrow slot, notch, or groove in a coastal cliff
T	CLDA	caldera	a depression measuring kilometers across formed by the collapse of a volcanic mountain
T	CLF	cliff(s)	a high, steep to perpendicular slope overlooking a waterbody or lower area
T	CNYN	canyon	a deep, narrow valley with steep sides cutting into a plateau or mountainous area
T	CONE	cone(s)	a conical landform composed of mud or volcanic material
T	CRDR	corridor	a strip or area of land having significance as an access way
T	CRQ	cirque	a bowl-like hollow partially surrounded by cliffs or steep slopes at the head of a glaciated valley
T	CRQS	cirques	bowl-like hollows partially surrounded by cliffs or steep slopes at the head of a glaciated valley
T	CRTR	crater(s)	a generally circular saucer or bowl-shaped depression caused by volcanic or meteorite explosive action
T	CUET	cuesta(s)	an asymmetric ridge formed on tilted strata
T	DLTA	delta	a flat plain formed by alluvial deposits at the mouth of a stream
T	DPR	depression(s)	a low area surrounded by higher land and usually characterized by interior drainage
T	DSRT	desert	a large area with little or no vegetation due to extreme environmental conditions
T	DUNE	dune(s)	a wave form, ridge or star shape feature composed of sand
T	DVD	divide	a line separating adjacent drainage basins
T	ERG	sandy desert	an extensive tract of shifting sand and sand dunes
T	FAN	fan(s)	a fan-shaped wedge of coarse alluvium with apex merging with a mountain stream bed and the fan spreading out at a low angle slope onto an adjacent plain
T	FORD	ford	a shallow part of a stream which can be crossed on foot or by land vehicle
T	FSR	fissure	a crack associated with volcanism
T	GAP	gap	a low place in a ridge, not used for transportation
T	GRGE	gorge(s)	a short, narrow, steep-sided section of a stream valley
T	HDLD	headland	a high projection of land extending into a large body of water beyond the line of the coast
T	HLL	hill	a rounded elevation of limited extent rising above the surrounding land with local relief of less than 300m
T	HLLS	hills	rounded elevations of limited extent rising above the surrounding land with local relief of less than 300m
T	HMCK	hammock(s)	a patch of ground, distinct from and slightly above the surrounding plain or wetland. Often occurs in groups
T	HMDA	rock desert	a relatively sand-free, high bedrock plateau in a hot desert, with or without a gravel veneer
T	INTF	interfluve	a relatively undissected upland between adjacent stream valleys
T	ISL	island	a tract of land, smaller than a continent, surrounded by water at high water
T	ISLET	islet	small island, bigger than rock, smaller than island.
T	ISLF	artificial island	an island created by landfill or diking and filling in a wetland, bay, or lagoon
T	ISLM	mangrove island	a mangrove swamp surrounded by a waterbody
T	ISLS	islands	tracts of land, smaller than a continent, surrounded by water at high water
T	ISLT	land-tied island	a coastal island connected to the mainland by barrier beaches, levees or dikes
T	ISLX	section of island	
T	ISTH	isthmus	a narrow strip of land connecting two larger land masses and bordered by water
T	KRST	karst area	a distinctive landscape developed on soluble rock such as limestone characterized by sinkholes, caves, disappearing streams, and underground drainage
T	LAVA	lava area	an area of solidified lava
T	LEV	levee	a natural low embankment bordering a distributary or meandering stream; often built up artificially to control floods
T	MESA	mesa(s)	a flat-topped, isolated elevation with steep slopes on all sides, less extensive than a plateau
T	MND	mound(s)	a low, isolated, rounded hill
T	MRN	moraine	a mound, ridge, or other accumulation of glacial till
T	MT	mountain	an elevation standing high above the surrounding area with small summit area, steep slopes and local relief of 300m or more
T	MTS	mountains	a mountain range or a group of mountains or high ridges
T	NKM	meander neck	a narrow strip of land between the two limbs of a meander loop at its narrowest point
T	NTK	nunatak	a rock or mountain peak protruding through glacial ice
T	NTKS	nunataks	rocks or mountain peaks protruding through glacial ice
T	PAN	pan	a near-level shallow, natural depression or basin, usually containing an intermittent lake, pond, or pool
T	PANS	pans	a near-level shallow, natural depression or basin, usually containing an intermittent lake, pond, or pool
T	PASS	pass	a break in a mountain range or other high obstruction, used for transportation from one side to the other [See also gap]
T	PEN	peninsula	an elongate area of land projecting into a body of water and nearly surrounded by water
T	PENX	section of peninsula	
T	PK	peak	a pointed elevation atop a mountain, ridge, or other hypsographic feature
T	PKS	peaks	pointed elevations atop a mountain, ridge, or other hypsographic features
T	PLAT	plateau	an elevated plain with steep slopes on one or more sides, and often with incised streams
T	PLATX	section of plateau	
T	PLDR	polder	an area reclaimed from the sea by diking and draining
T	PLN	plain(s)	an extensive area of comparatively level to gently undulating land, lacking surface irregularities, and usually adjacent to a higher area
T	PLNX	section of plain	
T	PROM	promontory(-ies)	a bluff or prominent hill overlooking or projecting into a lowland
T	PT	point	a tapering piece of land projecting into a body of water, less prominent than a cape
T	PTS	points	tapering pieces of land projecting into a body of water, less prominent than a cape
T	RDGB	beach ridge	a ridge of sand just inland and parallel to the beach, usually in series
T	RDGE	ridge(s)	a long narrow elevation with steep sides, and a more or less continuous crest
T	REG	stony desert	a desert plain characterized by a surface veneer of gravel and stones
T	RK	rock	a conspicuous, isolated rocky mass
T	RKFL	rockfall	an irregular mass of fallen rock at the base of a cliff or steep slope
T	RKS	rocks	conspicuous, isolated rocky masses
T	SAND	sand area	a tract of land covered with sand
T	SBED	dry stream bed	a channel formerly containing the water of a stream
T	SCRP	escarpment	a long line of cliffs or steep slopes separating level surfaces above and below
T	SDL	saddle	a broad, open pass crossing a ridge or between hills or mountains
T	SHOR	shore	a narrow zone bordering a waterbody which covers and uncovers at high and low water, respectively
T	SINK	sinkhole	a small crater-shape depression in a karst area
T	SLID	slide	a mound of earth material, at the base of a slope and the associated scoured area
T	SLP	slope(s)	a surface with a relatively uniform slope angle
T	SPIT	spit	a narrow, straight or curved continuation of a beach into a waterbody
T	SPUR	spur(s)	a subordinate ridge projecting outward from a hill, mountain or other elevation
T	TAL	talus slope	a steep concave slope formed by an accumulation of loose rock fragments at the base of a cliff or steep slope
T	TRGD	interdune trough(s)	a long wind-swept trough between parallel longitudinal dunes
T	TRR	terrace	a long, narrow alluvial platform bounded by steeper slopes above and below, usually overlooking a waterbody
T	UPLD	upland	an extensive interior region of high land with low to moderate surface relief
T	VAL	valley	an elongated depression usually traversed by a stream
T	VALG	hanging valley	a valley the floor of which is notably higher than the valley or shore to which it leads; most common in areas that have been glaciated
T	VALS	valleys	elongated depressions usually traversed by a stream
T	VALX	section of valley	
T	VLC	volcano	a conical elevation composed of volcanic materials with a crater at the top
U	APNU	apron	a gentle slope, with a generally smooth surface, particularly found around groups of islands and seamounts
U	ARCU	arch	a low bulge around the southeastern end of the island of Hawaii
U	ARRU	arrugado	an area of subdued corrugations off Baja California
U	BDLU	borderland	a region adjacent to a continent, normally occupied by or bordering a shelf, that is highly irregular with depths well in excess of those typical of a shelf
U	BKSU	banks	elevations, typically located on a shelf, over which the depth of water is relatively shallow but sufficient for safe surface navigation
U	BNKU	bank	an elevation, typically located on a shelf, over which the depth of water is relatively shallow but sufficient for safe surface navigation
U	BSNU	basin	a depression more or less equidimensional in plan and of variable extent
U	CDAU	cordillera	an entire mountain system including the subordinate ranges, interior plateaus, and basins
U	CNSU	canyons	relatively narrow, deep depressions with steep sides, the bottom of which generally has a continuous slope
U	CNYU	canyon	a relatively narrow, deep depression with steep sides, the bottom of which generally has a continuous slope
U	CRSU	continental rise	a gentle slope rising from oceanic depths towards the foot of a continental slope
U	DEPU	deep	a localized deep area within the confines of a larger feature, such as a trough, basin or trench
U	EDGU	shelf edge	a line along which there is a marked increase of slope at the outer margin of a continental shelf or island shelf
U	ESCU	escarpment (or scarp)	an elongated and comparatively steep slope separating flat or gently sloping areas
U	FANU	fan	a relatively smooth feature normally sloping away from the lower termination of a canyon or canyon system
U	FLTU	flat	a small level or nearly level area
U	FRZU	fracture zone	an extensive linear zone of irregular topography of the sea floor, characterized by steep-sided or asymmetrical ridges, troughs, or escarpments
U	FURU	furrow	a closed, linear, narrow, shallow depression
U	GAPU	gap	a narrow break in a ridge or rise
U	GLYU	gully	a small valley-like feature
U	HLLU	hill	an elevation rising generally less than 500 meters
U	HLSU	hills	elevations rising generally less than 500 meters
U	HOLU	hole	a small depression of the sea floor
U	KNLU	knoll	an elevation rising generally more than 500 meters and less than 1,000 meters and of limited extent across the summit
U	KNSU	knolls	elevations rising generally more than 500 meters and less than 1,000 meters and of limited extent across the summits
U	LDGU	ledge	a rocky projection or outcrop, commonly linear and near shore
U	LEVU	levee	an embankment bordering a canyon, valley, or seachannel
U	MESU	mesa	an isolated, extensive, flat-topped elevation on the shelf, with relatively steep sides
U	MNDU	mound	a low, isolated, rounded hill
U	MOTU	moat	an annular depression that may not be continuous, located at the base of many seamounts, islands, and other isolated elevations
U	MTU	mountain	a well-delineated subdivision of a large and complex positive feature
U	PKSU	peaks	prominent elevations, part of a larger feature, either pointed or of very limited extent across the summit
U	PKU	peak	a prominent elevation, part of a larger feature, either pointed or of very limited extent across the summit
U	PLNU	plain	a flat, gently sloping or nearly level region
U	PLTU	plateau	a comparatively flat-topped feature of considerable extent, dropping off abruptly on one or more sides
U	PNLU	pinnacle	a high tower or spire-shaped pillar of rock or coral, alone or cresting a summit
U	PRVU	province	a region identifiable by a group of similar physiographic features whose characteristics are markedly in contrast with surrounding areas
U	RDGU	ridge	a long narrow elevation with steep sides
U	RDSU	ridges	long narrow elevations with steep sides
U	RFSU	reefs	surface-navigation hazards composed of consolidated material
U	RFU	reef	a surface-navigation hazard composed of consolidated material
U	RISU	rise	a broad elevation that rises gently, and generally smoothly, from the sea floor
U	SCNU	seachannel	a continuously sloping, elongated depression commonly found in fans or plains and customarily bordered by levees on one or two sides
U	SCSU	seachannels	continuously sloping, elongated depressions commonly found in fans or plains and customarily bordered by levees on one or two sides
U	SDLU	saddle	a low part, resembling in shape a saddle, in a ridge or between contiguous seamounts
U	SHFU	shelf	a zone adjacent to a continent (or around an island) that extends from the low water line to a depth at which there is usually a marked increase of slope towards oceanic depths
U	SHLU	shoal	a surface-navigation hazard composed of unconsolidated material
U	SHSU	shoals	hazards to surface navigation composed of unconsolidated material
U	SHVU	shelf valley	a valley on the shelf, generally the shoreward extension of a canyon
U	SILU	sill	the low part of a gap or saddle separating basins
U	SLPU	slope	the slope seaward from the shelf edge to the beginning of a continental rise or the point where there is a general reduction in slope
U	SMSU	seamounts	elevations rising generally more than 1,000 meters and of limited extent across the summit
U	SMU	seamount	an elevation rising generally more than 1,000 meters and of limited extent across the summit
U	SPRU	spur	a subordinate elevation, ridge, or rise projecting outward from a larger feature
U	TERU	terrace	a relatively flat horizontal or gently inclined surface, sometimes long and narrow, which is bounded by a steeper ascending slope on one side and by a steep descending slope on the opposite side
U	TMSU	tablemounts (or guyots)	seamounts having a comparatively smooth, flat top
U	TMTU	tablemount (or guyot)	a seamount having a comparatively smooth, flat top
U	TNGU	tongue	an elongate (tongue-like) extension of a flat sea floor into an adjacent higher feature
U	TRGU	trough	a long depression of the sea floor characteristically flat bottomed and steep sided, and normally shallower than a trench
U	TRNU	trench	a long, narrow, characteristically very deep and asymmetrical depression of the sea floor, with relatively steep sides
U	VALU	valley	a relatively shallow, wide depression, the bottom of which usually has a continuous gradient
U	VLSU	valleys	a relatively shallow, wide depression, the bottom of which usually has a continuous gradient
V	BUSH	bush(es)	a small clump of conspicuous bushes in an otherwise bare area
V	CULT	cultivated area	an area under cultivation
V	FRST	forest(s)	an area dominated by tree vegetation
V	FRSTF	fossilized forest	a forest fossilized by geologic processes and now exposed at the earth's surface
V	GRSLD	grassland	an area dominated by grass vegetation
V	GRVC	coconut grove	a planting of coconut trees
V	GRVO	olive grove	a planting of olive trees
V	GRVP	palm grove	a planting of palm trees
V	GRVPN	pine grove	a planting of pine trees
V	HTH	heath	an upland moor or sandy area dominated by low shrubby vegetation including heather
V	MDW	meadow	a small, poorly drained area dominated by grassy vegetation
V	OCH	orchard(s)	a planting of fruit or nut trees
V	SCRB	scrubland	an area of low trees, bushes, and shrubs stunted by some environmental limitation
V	TREE	tree(s)	a conspicuous tree used as a landmark
V	TUND	tundra	a marshy, treeless, high latitude plain, dominated by mosses, lichens, and low shrub vegetation under permafrost conditions
V	VIN	vineyard	a planting of grapevines
V	VINS	vineyards	plantings of grapevines
null	not available	
