Lake Oesa

Lake Oesa is a body of water located at an elevation of 2267 m in the mountains of Yoho National Park, near Field, British Columbia, Canada, 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'. It can be reached via a 3.2 km climbing trail which starts at Lake O'Hara and ascends approximately 250 m. An alpine trail along the Yukness Ledges connects Lake Oesa to nearby Opabin Lake.