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Flathead Lake
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Flathead Lake Montana: Flathead Lake
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Flathead Lake
Flathead Lake Flathead Lake, northwestern Montana.

Flathead Lake

lake, Montana, United States
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Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
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History

Flathead Lake, lake in the Flathead National Forest of northwestern Montana, U.S. Flathead Lake marks the southern limit of the Rocky Mountain Trench, a structural depression extending northward to the Liard Plain of British Columbia, Canada. Bordered on the eastern shore by the Mission Range and on the west by the forested foothills of the Salish Mountains, it is 30 miles (48 km) long, 15 miles (24 km) wide, and 220 feet (67 metres) deep....

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