Martre, Lac la

Lac la Martre, 1777 km2, elev 265 m, max length 76 km, is located in the Northwest Territories, 50 km west of Behchokò and 150 km northwest of Yellowknife, and 346 km south of the Arctic Circle. The settlement of WHATÌ is located at the southeastern corner of the lake. The lake is fed by Lac Grandin and several smaller lakes and streams, and drains southeast into the North Arm of GREAT SLAVE LAKE. Originally, it appeared as Martin Lake (in Aaron Arrowsmith's map of Sir Alexander MACKENZIE'S journey of 1789), but later took on its present name, presumably owing to the abundance of pine marten (Martes americana) in the area.