| Lake Oesa | |
| Location: | Yoho National Park, British Columbia, Canada |
| Coordinates: | 51.355°N -116.304°W |
| Type: | lake |
| Elevation: | 2267m (7,438feet) |
| Pushpin Map: | British Columbia |
| Pushpin Map Alt: | Location of the lake in British Columbia, Canada. |
Lake Oesa is a body of water located at an elevation of 2267m (7,438feet)[1] in the mountains of Yoho National Park, near Field, British Columbia, Canada,[2] while a trail at the far end of the lake leads to Abbot Pass.
The lake gets its name from a Stoney language (Native American language) term for 'corner'.[3] It can be reached via a 3.2km (02miles) climbing trail which starts at Lake O'Hara and ascends approximately .[4] [5] An alpine trail along the Yukness Ledges connects Lake Oesa to nearby Opabin Lake.[6]