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Flathead River

 



FLATHEAD RIVER LAKES
Flathead Lake is the largest natural freshwater lake west of the Mississippi River in the contiguous United States, taking Red Lake (Minnesota) and Lake of the Woods to be north of the Mississippi River, rather than west of the river. With a surface area of between 191.5 sq mi and 197 sq mi, Flathead Lake is slightly larger than Lake Tahoe. The lak...
    Full Pool: 2,893.0 MSL     Area: 122,560 Acres