Largest lakes & reservoirs in Montana by acres
There is no widely-accepted minimum surface area that defines a lake. What LakeLubbers describes as a lake, you might call a pond. Acreage of a lake (or sometimes square kilometers) is most often measured at the top surface area when the lake is at normal elevation. The surface area can be considerably smaller or larger when lake levels are lower or higher than normal. North America’s Lake Superior is the world’s largest freshwater lake by this measure.The other measure of a lake’s size is the lake’s water volume. By that measure, the world’s largest freshwater lake is Lake Baikal in Siberia.
You can find many of the world’s largest lakes (acres) on LakeLubbers in the comparison table below. Note: For some lakes, "Largest Lakes - Acres" data is unknown or does not apply, so you may see fewer lakes than the total 30 articles we have published for Montana lakes.
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Below are lakes within USA > US West Region > Montana > Compared by surface area in acres. This list does not represent all lakes in Montana, only the 30 Montana lake articles we have published on the LakeLubbers website.
Lake name | Surface area in acres | Lake description |
---|---|---|
Lake Josephine (Glacier Country, MT, Montana, US West Region, USA) |
137 ac | One of the prettiest lakes in Many Glaciers Valley is Lake Josephine. This glacier-fed lake covers 137 acres upstream from better-known Swiftcurrent L … |
Grinnell Lake (Glacier Country, MT, Montana, US West Region, USA) |
130 ac | Also known as Grinnell Lake Trail, Lower Grinnell Lake Grinnell Lake is the reward at the end of the Grinnell Lake Trail. And what a reward it is! The entire trail, although considered one of the easiest h … |
Swiftcurrent Lake (Glacier Country, MT, Montana, US West Region, USA) |
106 ac | When many visitors to Glacier National Park think of lakes in the area, it is often Swiftcurrent Lake that comes to mind. Often photographed, this bea … |
Spoon Lake (Glacier Country, MT, Montana, US West Region, USA) |
60 ac | Set along the western edge of Montana’s Glacier National Park, amid towering mountain peaks and lush, echoing valleys, Spoon Lake rests in an outdoor … |
Fishercap Lake (Glacier Country, MT, Montana, US West Region, USA) |
13 ac | Fishercap Lake is a secluded, almost secret spot in Montana’s remote Glacier National Park wilderness. Spectacular jagged mountains surround this tiny … |