#natural_elevation__naturalelevation__elevation  a raised or elevated geological formation
  exclusion:  #natural_depression
  supertype:  #geological_formation__geology  the geological features of the earth
  part:  #incline
  subtype:  #highland__upland  elevated (e.g., mountainous) land
     subtype:  #down.highland  (usually plural) a rolling treeless highland with little soil
     subtype:  #tableland__plateau  a relatively flat highland
        subtype:  #Colorado_Plateau  a large plateau south and west of the Rocky Mountains; abuts mountains on the north and east and ends in an escarpment overlooking lowlands to the south and west; the Grand Canyon of the Colorado River is carved out of the southwestern corner
        subtype:  #Llano_Estacado  a large semiarid plateau forming the southern part of the Great Plains
        subtype:  #mesa__table  flat tableland with steep edges; "the tribe was relatively safe on the mesa but they had to descend into the valley for water"
        subtype:  #terrace__bench  a level shelf of land interrupting a declivity (with steep slopes above and below)
        instance:  #Ardennes
     instance:  #Highlands
  subtype:  #hill  a local and well-defined elevation of the land
     subtype:  #foothill  a relatively low hill on the lower slope of a mountain
     subtype:  #knoll__mound__hillock__hummock  a small natural hill
        subtype:  #anthill__formicary  a mound of earth made by ants as they dig their nest
        subtype:  #kopje__koppie  (South Africa) a small hill rising up from the African veld
        subtype:  #molehill  a mound of earth made by moles while burrowing
     subtype:  #tor  a high rocky hill
     instance:  #Calvary__Golgotha  #Zion__Sion  #Palatine  #Capitol_Hill__the_Hill
  subtype:  #hills__hill  hilly land; "they loved to roam the hills of West Virginia"; "the Black Hills"
     subtype:  #foothills__foothill  hilly land on the lower slopes of mountains
     instance:  #Cotswolds__Cotswold_Hills  #Nilgiri_Hills  #Black_Hills
  subtype:  #mountain__mount  a land mass that projects well above its surroundings; higher than a hill
     subtype:  #alp  any high mountain
     subtype:  #ben  (in Scotland or Ireland) a mountain or tall hill; "they were climbing the ben"
     subtype:  #seamount  an underwater mountain rising above the ocean floor
        subtype:  #guyot  a seamount of volcanic origin (especially in the Pacific Ocean)
     subtype:  #volcano  a mountain formed by volcanic material
        instance:  #Cameroon  #Citlaltepetl__Mount_Orizaba__Mt_Orizaba__Pico_de_Orizaba  #Nevado_de_Colima__Colima__Volcan_de_Colima  #Cotacachi  #Cotopaxi  #Demavend  #El_Misti  #Mount_Etna__Etna__Mt_Etna  #Fuego  #Fuji-san__Fuji__Fujiyama  #Galeras__Pasto  #Guallatiri  #Huainaputina  #Klyuchevskaya  #Krakatau__Krakatao__Krakatoa  #Lascar  #Mauna_Kea  #Mauna_Loa  #Purace  #Sangay  #Tupungatito  #Mount_Saint_Helens__Mount_St._Helens__Mt._St._Helens  #Mount_Vesuvius__Vesuvius__Mt._Vesuvius
     instance:  #Mount_Olympus__Olympus__Mt._Olympus__Olimbos
  subtype:  #promontory__headland__foreland  a natural elevation (especially a rocky one that juts out into the sea)
     subtype:  #Cape_Canaveral__Cape_Kennedy  a sandy promontory (formerly Cape Kennedy) extending into the Atlantic Ocean from a barrier island off the eastern coast of Florida; the site of a NASA center for spaceflight
     subtype:  #Cape_Sable  a promontory on the far southern part of Nova Scotia
     subtype:  #Jebel_Musa__Abila__Abyla  a promontory in northern Morocco opposite the Rock of Gibraltar; one of the Pillars of Hercules
     subtype:  #mull  a term used in Scottish names of promontories; "the Mull of Kintyre"
     subtype:  #point.promontory  a promontory extending out into a large body of water; "they sailed south around the point"
     instance:  #Cape_Horn  #Gibraltar__Rock_of_Gibraltar__Calpe  #Cape_Hatteras
  subtype:  #ridge  a long narrow natural elevation or striation
     subtype:  #bank.ridge  a long ridge or pile; "a huge bank of earth"
        subtype:  #bluff  a high steep bank (usually formed by river erosion)
        subtype:  #sandbank  a submerged bank of sand near a shore or in a river; can be exposed at low tide
           subtype:  #shoal  a sandbank in a stretch of water that is visible at low tide
     subtype:  #bar.ridge  a submerged (or partly submerged) ridge in a river or along a shore
        subtype:  #sandbar__sand_bar  a bar of sand
     subtype:  #sand_dune__dune  a ridge of sand created by the wind; found in deserts or near lakes and oceans
     subtype:  #ledge__shelf  a projecting ridge on a mountain or submerged under water
     subtype:  #reef  a submerged ridge of rock or coral near the surface of the water
        subtype:  #coral_reef__coralreef  a reef consisting of coral consolidated into limestone
           subtype:  #atoll  an island consisting of a circular coral reef surrounding a lagoon
              instance:  #Kwajalein  #Eniwetok.atoll__eniwetok  #Kwajalein.atoll__kwajalein  #Midway_Islands
           subtype:  #barrier_reef__barrierreef  a long coral reef near and parallel to the shore
           subtype:  #Florida_keys__key__cay  a coral reef off the southern coast of Florida
     subtype:  #ripple_mark  one of a series of small ridges produced in sand by water currents or by wind
  subtype:  #swell  a rounded elevation (especially one on an ocean floor)

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