Flathead Lake depth map (nautical chart)
The marine chart shows water depth and hydrology on an interactive map. Flathead Lake is located in the USA (state: Montana, counties: Lake, Flathead). Coordinates: 47.892219503943, -114.10400390625. The maximum depth is 371 feet. Click for explore the depth map now
Flathead Lake is home to an old legend known as Flathead Nessie.
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