| Source Lake | |
|---|---|
| Location | Ontario |
| Primary outflows | Madawaska River |
| Basin countries | Canada |
| Max. length | 3.7 km (2.3 mi) |
| Max. width | 1.2 km (0.7 mi) |
| Surface elevation | 450 m (1,476 ft) |
Source Lake is a small lake in Algonquin Park in Ontario, Canada. It is the source of the Madawaska River, which empties into the Ottawa River.
Camp Pathfinder, a boys' summer camp, is located on Source Lake[1].