Deepest lakes & reservoirs in US West Region by maximum depth (ft)
The estimated greatest depth of the water in a lake can be measured at the lake’s normal elevation. If the water volume and surface area of a lake are known, an estimate of the lake’s average depth can be calculated:Water volume ÷ Surface Area = Average Depth
Example: 1,000,000 acre-feet ÷ 20,000 acres = 50 feet average depth.
You can find many of the the world’s deepest lakes on LakeLubbers. If you sort the list, you will find the (maximum depth of) the shallowest lakes in our database. Note: For some lakes, lake depth data is unknown, so this table may display 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 maximum depth in feet. 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  |
Max depth in feet |
Lake description |
|---|---|---|
| Crater Lake, OR (Oregon, Southern Oregon, US West Region, USA) |
1,943 ft | Crater Lake is on the crest of the Cascade Range in southern Oregon, about 100 miles from the ocean, and is the centerpiece of Crater Lake National Pa… |
| Lake Tahoe, CA/NV (California, High Sierra Region, CA, Nevada, Renoe-Tahoe Territory, NV, US West Region, USA) |
1,645 ft | 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 Stat… |
| Lake Chelan, WA (North Central Washington, US West Region, USA, Washington) |
1,486 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… |
| Lake Pend Oreille, ID (Idaho, Northern Idaho, US West Region, USA) |
1,152 ft | 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. Its 85,… |
| Lake Clark, AK (Alaska, Southwest Region, AK, US West Region, USA) |
1,056 ft | Lake Clark is located about 150 miles southwest of Anchorage in southern Alaska. The lake spans 128 square miles, making it the seventh* largest fresh… |
| Tustumena Lake, AK (Alaska, Southcentral Region, AK, US West Region, USA) |
950 ft | 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 Massachusett… |
| Iliamna Lake, AK (Alaska, Southwest Region, AK, US West Region, USA) |
900 ft | 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 Stat… |
| Katmai Crater Lake (Alaska, Southwest Region, AK, US West Region, USA) |
800 ft | Little known and seldom seen, Katmai Crater Lake is an example of nature’s handiwork at its most impressive. Located on the Alaskan Peninsula within K… |
| Lake Oroville, CA (California, Shasta Cascade Region, CA, US West Region, USA) |
695 ft | Also known as Oroville Reservoir Lake Oroville, snuggled into the Sierra Nevada Foothills about 75 miles north of Sacramento, is one of northern California’s favorite playgrounds. Boa… |
| Dworshak Reservoir, ID (Idaho, North Central Idaho, US West Region, USA) |
650 ft | Dworshak Reservoir is an excellent outdoor recreation site with a great water playground of over 19,000 acres. Located in northern Idaho near the town… |
| Lake Crescent, WA (Olympic Peninsula & Pacific Coast Region, WA, US West Region, USA, Washington) |
624 ft | Also known as Crescent Lake Lake Crescent is a majestic glacial lake located at the northern tip of the Olympic National Forest in Clallam County, Washington. Glaciers during the… |
| Fremont Lake (Southwest Wyoming, US West Region, USA, Wyoming) |
607 ft | Also known as The Deep, Stewart Lake (historical) One of the best-kept secret lake destinations in Northwestern Wyoming is spectacular Fremont Lake. Formed by nature when glaciers gouged out a deep tr… |