Mezue ahịrịokwu na-esonụ: Clear Lake bụ obere ọdọ mmiri dị nnọọ n'ebe ọdịda anyanwụ-n'ebe ugwu ọdịda anyanwụ nke Blue Lake na Cape Royds, Ross Island. Aha na-akọwa ihe nke onye na-ahụ maka
British Antarctic Expedition (1907-09). Ọ bụ ọdọ mmiri kasị omimi n'ógbè a.