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Lake Oesa is a body of water located at an elevation of 2,267m (7438 ft) in the mountains of Yoho National Park, near Field, British Columbia, Canada.
Map of Oesa, Lake, Columbia-Shuswap A, BC, Canada
The lake gets its name from a Native American term for 'ice', as its surface is normally frozen. It can be reached via a 3.2 km climbing trail which starts at Lake O'Hara and ascends approximately 250m. An alpine trail along the Yukness Ledges connects Lake Oesa to nearby Opabin Lake.
References
Lake Oesa Wikipedia(Text) CC BY-SA