"18.8"^^ . . . "Lake Volta is a large reservoir contained behind the Akosombo Dam, it is located completely within the country of Ghana, and it has a surface area of 8,502 square kilometres (3,283 sq mi)."@en . "4.8e+06"^^ . . . "75.0"^^ . "8.502e+09"^^ . "Lake Volta"@en . . "3.8518e+11"^^ . . . "85.0"^^ . . . "1.48e+11"^^ .