Its main inlet and outlet is the north-flowing Dubawnt River which joins the Thelon River at Beverly Lake. The Thelon flows east to Hudson Bay at Chesterfield Inlet. It is on the line of contact between the Sayisi Dene band of Eastern Caribou-Eater Chipewyan people and the Harvaqtuurmiut and Ihalmiut bands of Caribou Inuit.
Its primary watercourse is the north-flowing Dubawnt River, which connects to the Thelon River at Beverly Lake. The Thelon then flows east to Hudson Bay at Chesterfield Inlet. It is situated on the boundary between two Native American groups: the Sayisi Dene band of Eastern Caribou-Eater Chipewyan people and the Harvaqtuurmiut and Ihalmiut bands of Caribou Inuit.