"O'a Caldera"@en . . . "2075.0"^^ . "The O'a Caldera, also known as Shala, is a volcanic caldera in Ethiopia. It has three lakes: Lake Shala, Lake Abijatta, and a small volcanic Maar called Lake Chitu. Sub-features include Mount Fike (a pyroclastic cone) and Mount Billa (a cinder cone)."@en . . .