The lake is part of the Muncho Lake Provincial Park and located at kilometre 681 (mile ) of the Alaska Highway. The lake is about long and its width varies between 1 and 6 km. It reaches a maximum depth of . The surrounding peaks (the Terminal Range of the Muskwa Ranges to the west and the Sentinel Range to the east) reach altitudes of more than , while the lake lies at an elevation of . It is formed along the Trout River, a tributary of the Liard River.