The water levels of Belmont Lake are regulated by the Crowe Valley Conservation Authority. A drawdown occurs in the fall. It is part of the Great Lakes Basin, and is a right tributary of the Crowe River.
The Crowe river begins at Imp Lake in geographic Methuen Township and flows south, past the Blue Mountain Mine at Devil’s Lake, to Kasshabog Lake. It continues South to Long Lake, then turns East, then resumes a Southward direction, and enters geographic Belmont Township.
Boat Launch is located at: 377 Mile of Memories Road. The marina is located at 56 Fire Rte 33 Havelock.
The surface area is approximately 757.5715 hectors (1872 acres) the max. depth is approximately 15.5m (51 feet) and the average depth is approximately 6m (20 feet). There are approximately 50 Islands to explore.