Largest lakes & reservoirs in US West Region by water volume
The estimated volume of water that a lake contains is measured at the lake’s normal elevation. By this measure, the world’s largest freshwater lake is Siberia’s Lake Baikal.Water Volume can be measured in acre-feet, in cubic miles, or in cubic kilometers. One acre-foot is the amount of water needed to cover one acre (43,560 square feet) to a depth of one foot. One cubic mile equals 3,379,200 acre-feet. One cubic kilometer equals 810,713 acre-feet. 1 acre-foot is equal to 325,851 US gallons. Siberia’s Lake Baikal contains about 6,276,367,740,000,000 gallons of freshwater – nearly 1 million gallons for every living person on earth.
The other – and more widely used – measure of a lake’s size is the lake’s surface acreage. By that measure, the world’s largest freshwater lake is North America’s Lake Superior.
Note: In the United States, an acre foot is a unit of volume used to refer to large-scale bodies of water. It is defined by the volume of water needed to cover 1 acre of surface area to a depth of 1 foot.
You can find many of the the world’s largest lakes (by water volume) on LakeLubbers. Note: For some lakes, the water volume 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 water volume. 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 | Water vol. in ac-ft | Lake description |
---|---|---|
Strawberry Reservoir, UT (Mountainland Region, UT, US West Region, USA, Utah) |
1,106,500 ac-ft | (Also known as The Berry) Strawberry Reservoir, known locally as The Berry, is Utah’s most popular fishing spot. Located in Wasatch County, a convenient 65 miles east of the Wa … |
Lake Chelan, WA (North Central Washington, US West Region, USA, Washington) |
1,040,000 ac-ft | 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 … |
Navajo Lake NM (Colorado, New Mexico, Northwest New Mexico, NM, Southeast Colorado, US Southwest Region, US West Region, USA) |
1,036,100 ac-ft | (Also known as Navajo Reservoir) Navajo Lake offers a surprising and welcome expanse of water in northwestern New Mexico. The 15,600-acre reservoir stretches north into southwest Colo … |
Seminoe Reservoir, WY (Central Wyoming, US West Region, USA, Wyoming) |
1,017,279 ac-ft | Seminoe Reservoir is an outdoor person’s wonderland with great fishing and an over 20,000 acre surface for boating and water sports. Near the north en … |
Pathfinder Reservoir, WY (Central Wyoming, US West Region, USA, Wyoming) |
1,016,000 ac-ft | Pathfinder Reservoir is the oldest reservoir along the North Platte River. With over 21,000 acres of water it is a welcome destination for more than 1 … |
Lake Ozette, WA (Olympic Peninsula & Pacific Coast Region, WA, US West Region, USA, Washington) |
1,012,310 ac-ft | (Also known as Ozette Lake) Nestled in dense forest just a few miles from the Pacific Coast, Lake Ozette sits snuggled into Washington’s Olympic Peninsula tourism region, on the … |
Folsom Lake, CA (California, Gold Country Region, CA, US West Region, USA) |
1,010,000 ac-ft | Folsom Lake lays magnificently nestled along the American River at the base of the Sierra foothills. It is surrounded by an abundance of striking scen … |
New Bullards Bar Reservoir, CA (California, Gold Country Region, CA, US West Region, USA) |
969,000 ac-ft | (Also known as Bullards Bar Reservoir) New Bullards Bar Reservoir is located on the west side of the Sierra Nevada Mountains in Yuba County, California, surrounded by the Tahoe and Plumas N … |
Boysen Reservoir (Central Wyoming, US West Region, USA, Wyoming) |
952,400 ac-ft | (Also known as Boysen Lake) Its gleaming expanse framed by the barren high desert hills of Central Wyoming, Boysen Reservoir offers a welcome respite from the summer heat. Nearly … |
Utah Lake, UT (Mountainland Region, UT, US West Region, USA, Utah) |
900,000 ac-ft | Utah Lake is located in north-central Utah’s Mountainland region with the major cities of Provo and Orem on the eastern shore. It is the largest fresh … |
Upper Klamath Lake, OR (Oregon, Southern Oregon, US West Region, USA) |
873,000 ac-ft | Stretching for an impressive 30 miles, Upper Klamath Lake is the largest freshwater lake in the State of Oregon. Nestled in the Klamath Basin, it is s … |
Jackson Lake, WY (Northwest Wyoming, US West Region, USA, Wyoming) |
847,000 ac-ft | Jackson Lake is located in northwestern Wyoming, just south of Yellowstone National Park. It is in the heart of Grand Teton National Park, one of the … |