natural depression Definition

depression, alluvial fan, kettle hole, natural elevation, interfluve, trogue, basin, catchdrain, body of water, fluviometer, escarp, swallow hole, geological phenomenon, scrobiculate, geological process, atterrate, coalhole, diaclasis, lithophyse, atterration, catchwork, geosynclinal, diluvium, peperino, landflood, cunette, graffage, water meadow, diastrophism, suspiral, camouflet, plutonism, volcanic crater, air shaft, crater, trough, trench, drainage, bradyseism, epeirogenesis, remblai, artificial lake, geological fault, sinkhole, topsoiling, sentine, cesspipe, powdike, desert soil, geological formation, aquiferous, fossula, acclivous, stone pit, regosol, suboceanic, flumen, overfall, water rail, solonchak, wash room, indraught, gully, sastruga, fossulate, ravine, stylolite, gurge, batardeau, water gang, grike, illutation, zastruga, understratum, estacade, planosol, tachylyte, box canyon, rupestrian, drift ice, cantharus, water joint, paludinal, mudwall, interamnian, soil pipe, draintile, drainage basin, water butt, pentice, continental slope, shelfy, ouze, intercolline, debouchure, incaverned, stulm, sheepback, isobathytherm, cascalho,