| Otter Lake | |
|---|---|
| Sunset over Otter Lake | |
| Location | Seguin, Ontario |
| Lake type | Glacial lake, oligotrophic, dimictic |
| Primary inflows | Natural springs |
| Primary outflows | Boyne River (Ontario) |
| Basin countries | Canada |
| Max. length | 6.5 km (4.0 mi) |
| Max. width | 7.25 km (4.50 mi) |
| Surface area | 5.06 km2 (1,250 acres) |
| Average depth | 10.8 m (35 ft) |
| Max. depth | 45 m (148 ft) |
| Surface elevation | 208 m (682 ft) |
| Frozen | Mid-December to Late April |
| Islands | Bluebell, Delta, Fair, Sentinel, Snake |
| Settlements | (None on lake) |
Otter Lake is located in the Township of Seguin (formerly Foley Township), in the District of Parry Sound, Ontario, Canada. Otter Lake was originally named 'Nigge-Cu-Bing' (Lake of Many Otters) by the original Native American inhabitants.
The water level is controlled by a dam at the Boyne River.