"ENVO:00000094"^^ . . "FTT:591"^^ . "TGN:21407"^^ . "A feature associated with a volcano, an opening, or rupture, in the Earth's surface or crust, which allows hot, molten rock, ash and gases to escape from deep below the surface."^^ . "volcanic feature"^^ . . "volcanic landform"^^ . "ENVO"^^ .