Largest lakes & reservoirs in US West Region 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 329 articles we have published for US West Region lakes.
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Below are lakes within USA > US West Region > Compared by surface area in acres. This list does not represent all lakes in US West Region, only the 329 US West Region lake articles we have published on the LakeLubbers website.
Lake name | Surface area in acres | Lake description |
---|---|---|
Flaming Gorge Reservoir, UT/WY (Dinosaurland Region, UT, Southwest Wyoming, US West Region, USA, Utah, Wyoming) |
42,020 ac | With more than 42,000 acres of boating and fishing waters, surrounded by choice camping and picnic areas, Flaming Gorge Reservoir – straddling the Wyo … |
Lake Wallula, OR/WA (Eastern Oregon, Oregon, South Central Washington, US West Region, USA, Washington) |
38,800 ac | Lake Wallula, a 64 mile long reservoir, is a wide open glassy lake that extends from northeastern Oregon to southeastern Washington. Lake Wallula rece … |
Canyon Ferry Lake, MT (Gold West Country, MT, Montana, US West Region, USA) |
33,500 ac | For lake lovers who relish the beauty of nature and the wonder of wildlife, there’s no better place to relax and have fun than at Canyon Ferry Lake. A … |
Lake Chelan, WA (North Central Washington, US West Region, USA, Washington) |
33,335 ac | From the Salish Indian word for “deep notch”, Lake Chelan is the third deepest lake in the United States with a maximum depth of almost 1500 feet. Lak … |
Walker Lake, NV (Nevada, Nevada Silver Trails, NV, US West Region, USA) |
32,192 ac | Walker Lake is a natural lake located in rural Mineral County, Nevada about 75 miles southeast of Reno, Nevada. It is one of several freshwater termin … |
Coeur d’Alene Lake, ID (Idaho, Northern Idaho, US West Region, USA) |
30,000 ac | Also known as Lake Coeur d'Alene Nestled at the foothills of the Rocky Mountains in the Northern Panhandle of Idaho, 30,000-acre Coeur d’Alene Lake (pronounced Core-de-lane) is a spec … |
Shasta Lake, CA (California, Shasta Cascade Region, CA, US West Region, USA) |
29,500 ac | Shasta Lake, one of the largest lakes in California, is an outdoor paradise of fresh blue water, awe-inspiring caverns, investigative trails, first cl … |
Lake Cascade, ID (Idaho, Southwestern Idaho, US West Region, USA) |
28,300 ac | Also known as Cascade Reservoir Lake Cascade (Cascade Reservoir) is the fourth largest lake in Idaho, creating an extensive and diverse recreation site for visitors. Its nearly 30,00 … |
Lake Mohave, AZ/NV (Arizona, Las Vegas Territory, NV, Nevada, US Southwest Region, US West Region, USA, West Coast Region, AZ) |
28,260 ac | Lake Mohave is a man-made reservoir on the Colorado River that spans 28,260 acres. It is a part of the Lake Mead National Recreation Area, and was cre … |
Lake Almanor, CA (California, Shasta Cascade Region, CA, US West Region, USA) |
28,257 ac | One of the largest artificial lakes in the state, Lake Almanor lays claim to approximately 28,000 acres of northeastern California. The lake was creat … |
Potholes Reservoir, WA (North Central Washington, US West Region, USA, Washington) |
27,800 ac | Potholes Reservoir was formed by the building of the O’Sullivan Dam which is one of the largest earthfill dams in the United States. The name “pothole … |
Banks Lake, WA (North Central Washington, US West Region, USA, Washington) |
27,000 ac | Banks Lake is a 27 mile equalizing reservoir and part of the Columbia Basin Project, a major water resource project to provide irrigation water to fer … |