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ISA Lake

Isa lake, is a lake. Situated in Yellowstone Park on top Craig pass on the continental divide. One of the few natural lakes in the world which drain to two different oceans. The east side of the lake drains by way of the Lewis River to the Pacific Ocean and the west side of the lake drains by way of the Firehole River to the Gulf of Mexico. Yes, it's backwards. Hiram M. Chittenden became the first known European to sight the lake in 1891. Chittenden named the lake after Miss Isabel Jelke, from Cincinnati.

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Uploaded on August 16, 2025
Taken on August 9, 2025