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Here are the 315 lakes we have listed within USA > West - compared by Largest Lakes - Acres.

Note: For some lakes, "Largest Lakes - Acres" is unknown or does not apply, so this comparison may show fewer lakes than you originally selected. Suggest a new lake.

Lake Name Area in acres Lake Description
Great Salt Lake
(Utah, USA)
1,088,000 Great Salt Lake Pictures Also known as: America's Dead Sea
Sometimes called "America's Dead Sea," the Great Salt Lake occupies approximately 1,700 square miles of Utah's real estate. It is the second largest lake (by surface area) that is wholly contained within the USA; only Lake Michigan is larger. Great Salt Lake boasts the USA's longest lake shoreline - ...
Iliamna Lake
(Alaska, USA)
653,552 Iliamna Lake Pictures Also known as: Lake Iliamna
Iliamna Lake, also known as Lake Iliamna, is the largest lake in Alaska and the second largest freshwater lake contained wholly within the United States (after Lake Michigan). This glacial lake in southwest Alaska is often referred to as an inland sea, stretching out about 80 miles long, 25 miles wide, ...
Becharof Lake
(Alaska, USA)
289,705 Becharof Lake, the second* largest lake in Alaska, is located on the Alaskan Peninsula. Stretching an incredible 290,000 acres, the lake measures 35 miles long and 15 miles wide and reaches depths of as much as 600 feet. Deep in the remote Alaskan wilderness, Becharof Lake offers its visitors an unforgettable ...
Selawik Lake
(Alaska, USA)
262,809 Selawik Lake is located on the Arctic Circle in the the northwestern part of Alaska. Covering an impressive 263,000 acres*, the lake is the third largest in the state.Selawik Lake's name comes from the Inupiaq word for "place of sheefish," and the lake and its tributaries are especially known for this ...
Fort Peck Lake
(Montana, USA)
245,000 Fort Peck Lake Pictures Fort Peck Lake, located 20 miles southeast of Glasgow, Montana on Montana Highway 24, is the 5th-largest man-made reservoir by volume in the United States and is Montana's largest lake. Named after an old trading post, Fort Peck Lake is one of six lakes on the Missouri River. The other five lakes are ...
Salton Sea
(California, USA)
240,640 Salton Sea Pictures Also known as: Salton Lake
Salton Sea, sometimes called Salton Lake, is an inland saline lake located in southern California along the Mexican border. Though hard to believe, the creation of one of the world's largest inland seas was an accident: in 1905, flooding of the Colorado River caused water to flow through the canal barriers ...
Lake Powell
(Arizona, USA / Utah, USA)
160,800 Lake Powell Pictures Lake Powell is located in one of Southern Utah's most picturesque red-rock desert areas and in Arizona's Navajo Indian Reservation. It is one of the USA's most scenic reservoirs. At "full pond" (normal water level) it is the second-largest man-made reservoir in the USA by volume - but drought can reduce ...
Lake Mead
(Arizona, USA / Nevada, USA)
157,900 Lake Mead Pictures Lake Mead is the USA's largest man-made reservoir in amount of water it can hold. Although Lake Powell is marginally larger in acreage at full-pond, Lake Mead holds more water by volume and thus is considered the larger of the two. In the size of their surfaces, both are dwarfed by Lake Sakakawea and ...
Naknek Lake
(Alaska, USA)
154,880 Naknek Lake Pictures Naknek Lake is located southwest of Anchorage on the Alaskan Peninsula. The lake is the fifth largest in Alaska, covering 144,315 acres* in the heart of the Alaskan wilderness. The lake is the largest in the national park system and a prime destination for nature lovers, being especially known for its ...
Flathead Lake
(Montana, USA)
122,560 Flathead Lake Pictures Carved out by the historic glaciers of the last ice age approximately 11,000 years ago, Flathead Lake is one of the largest natural freshwater lakes in the western United States. The Kerr Dam regulates water flow from the lake's major tributaries -- the Flathead and Swan Rivers -- providing hydroelectric ...
Lake Tahoe
(California, USA / Nevada, USA)
122,000 Lake Tahoe Pictures Tucked into the Sierra Nevada Mountains and straddling the California-Nevada state line, Lake Tahoe is one of the most famous lakes in the United States. It's the second deepest lake in the country (only Crater Lake in Oregon is deeper), and was home to the area's 1960 Squaw Valley Winter Olympics. ...
Pyramid Lake
(Nevada, USA)
117,400 Pyramid Lake Pictures Pyramid Lake is a true natural wonder located in the Pyramid Lake Paiute Indian Reservation in western Nevada. Covering 117,400 acres, it is the third largest of the remaining salt lakes in the United States, after Great Salt Lake, Utah and Salton Sea, California. Pyramid Lake is the last remnant of ...
Utah Lake
(Utah, USA)
96,900 Utah Lake Pictures Utah Lake Message Forums 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 freshwater natural lake in Utah. Utah Lake has the picturesque Wasatch Mountains to the east and the Lake Mountains to the west. With its extensive shoreline, ...
Lake Pend Oreille
(Idaho, USA)
94,600 Lake Pend Oreille Pictures Also known as: Albeni Falls Dam
Set in a valley carved by glaciers from Canada, Lake Pend Oreille (pond-a-RAY) is surrounded by mountains with altitudes exceeding 6,000 feet. It's 94,600 surface acres - 148 square miles - plunge to depths reaching 1,152 feet, making it one of the largest and deepest natural lakes in the western United ...
Yellowstone Lake
(Wyoming, USA)
84,288 Yellowstone Lake Pictures Yellowstone Lake is located in the southeast corner of Yellowstone National Park, Wyoming. The Park was established in 1872, making it the first national park in the world. Yellowstone is one of the most visited National Parks in the United States, and many visitors use the Lake as their 'base camp' ...
Lake Roosevelt
(Washington, USA)
82,000 Lake Roosevelt Pictures Also known as: Lake Franklin D. Roosevelt
Lake Roosevelt, located approximately 90 miles northwest of Spokane, Washington, covers 82,000 acres with a shoreline of 630 miles. Lake Roosevelt, also known as Lake Franklin D. Roosevelt, was formed when the Grand Coulee Dam was completed in 1942. As part of Franklin D. Roosevelt's New Deal ...
Lake Clark
(Alaska, USA)
76,892 Lake Clark Pictures Lake Clark is located about 150 miles southwest of Anchorage in southern Alaska. The lake spans 128 square miles, making it the seventh* largest freshwater lake in the state. The lake is part of the 4 million acre Lake Clark National Park and Preserve. This park is often referred to as the "essence ...
Tustumena Lake
(Alaska, USA)
73,437 Tustumena Lake Pictures Alaska has 17,243 square miles of inland water including both lakes and rivers. The area of inland water is greater than the land mass of Massachusetts and Vermont combined. At 73,437 acres* Tustumena Lake near Kasilof is Alaska's eighth largest lake and the largest lake on the Kenai Peninsula. ...
Bear Lake
(Idaho, USA / Utah, USA)
69,760 Bear Lake Pictures A natural freshwater lake straddling the borders of Utah and Idaho, Bear Lake is a 70,000-acre turquoise jewel that lives up to its moniker of "Caribbean of the Rockies." This lake, estimated to have formed 150,000 years ago, boasts spectacular views and a healthy year-round tourism industry, thanks ...
Upper Klamath Lake
(Oregon, USA)
61,544 Upper Klamath Lake Pictures Upper Klamath Lake Message Forums 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 surrounded by the dramatic mountain landscapes and forested hills of the state's Southern tourism region. Upper Klamath Lake features an average depth ...
American Falls Reservoir
(Idaho, USA)
56,000 With more than 56,000 acres of water sport, boating and fishing waters, surrounded by choice camping and picnic areas, American Falls Reservoir in southeastern Idaho is an ideal leisure-time destination. American Falls Reservoir provides many excellent outdoor opportunities, including recreation areas ...
Lake Koocanusa
(British Columbia, Canada / Montana, USA)
46,720 Lake Koocanusa Pictures Also known as: Koocanusa Lake, Koocanusa Reservoir
In the far north of the United States, tucked into the northwestern end of Montana, is the long, narrow Lake Koocanusa. This lake is actually a man-made reservoir, created by the damming of the Kootenai (or, alternatively, Kootenay) River in the late 1960's and early 1970's. The dam that was built ...
Mono Lake
(California, USA)
44,762 Mono Lake Pictures Mono Lake, located in California's Eastern Sierra Nevada Mountains, has a long and rich history dating back to its formation over 760,000 years ago. Sediments below the lake's surface indicate that Mono Lake might be a leftover of an earlier, larger lake. Today, Mono Lake is fed from melting runoff ...
Clear Lake
(California, USA)
43,785 Clear Lake Pictures Clear Lake Message Forums Clear Lake's spectacular 43,785 acres earn it the superlative of largest natural freshwater lake located entirely within the state of California. This unique natural reservoir is also thought to be one of the oldest lakes in North America - at 480,000 years or more - and it contains several underwater ...
Flaming Gorge Reservoir
(Utah, USA / Wyoming, USA)
42,020 Flaming Gorge Reservoir Pictures With more than 42,000 acres of boating and fishing waters, surrounded by choice camping and picnic areas, Flaming Gorge Reservoir - straddling the Wyoming and Utah state line - is an ideal leisure-time destination. Flaming Gorge Reservoir, in Ashley National Forest, provides many excellent recreational ...

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