"Wikipedia:Canyon"^^ . "FTT:418"^^ . "canyon"^^ . "Geonames:T.CNYN"^^ . "FTT:420"^^ . "gulch"^^ . "flume (natural)"^^ . "FTT:419"^^ . "ENVO:00000169"^^ . . "defile"^^ . "TGN:21424"^^ . "TGN:21427"^^ . "TGN:21426"^^ . "chasm"^^ . "TGN:21429"^^ . "gap"^^ . "FTT:200"^^ . "quebrada"^^ . "FTT:511"^^ . "Relatively narrow, deep depression with steep sides, the bottom of which generally has a continuous slope."^^ . "ravine"^^ . "barranca"^^ . "ENVO"^^ . . "FTT:417"^^ . "FTT:416"^^ . "EcoLexicon:canyon"^^ . "SWEETRealm:Canyon"^^ . "gorge"^^ . "FTT:165"^^ . "FTT:415"^^ . "valley"^^ .