Deepest lakes & reservoirs in Colorado 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 49 articles we have published for Colorado lakes.
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Below are lakes within USA > US West Region > Colorado > Compared by maximum depth in feet. This list does not represent all lakes in Colorado, only the 49 Colorado lake articles we have published on the LakeLubbers website.
Lake name  |
Max depth in feet |
Lake description |
|---|---|---|
| Morrow Point Reservoir, CO (Colorado, Southwest Colorado, US West Region, USA) |
400 ft | Only something truly breathtaking and extraordinary would make it worth carrying a kayak down 232 steps. The steep, rocky cliffs meeting the clear blu… |
| Navajo Lake NM (Colorado, New Mexico, Northwest New Mexico, NM, Southeast Colorado, US Southwest Region, US West Region, USA) |
396 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… |
| Blue Mesa Reservoir, CO (Colorado, Southwest Colorado, US West Region, USA) |
342 ft | Also known as Blue Mesa Lake Beautiful mesas, deep canyons, and steep rocky cliffs surround Blue Mesa Reservoir, the second largest lake entirely in Colorado. The clear, blue, mou… |
| McPhee Reservoir, CO (Colorado, Southwest Colorado, US West Region, USA) |
270 ft | In 1776 Spanish priests traveling through the Dolores Valley imagined a project that would bring water to the thirsty crops of the Montezuma Valley. B… |
| Grand Lake, CO (Colorado, Front Range Region, CO, US West Region, USA) |
256 ft | Nestled in the Rocky Mountains and filled with water from melting snow, Grand Lake is the headwaters of the Colorado River and one of the state’s trea… |
| Lake Granby, CO (Colorado, Front Range Region, CO, US West Region, USA) |
221 ft | Also known as Granby Lake Nestled in the shadows of the majestic Rocky Mountains near the headwaters of the Colorado River, Lake Granby is a great place for a mountain getaway.… |
| Green Mountain Reservoir (Colorado, Northwest Colorado, US West Region, USA) |
195 ft | Thousands of tourists and recreational guests come to the Colorado Rockies each year, never knowing that Green Mountain Reservoir is only a short dist… |
| Horsetooth Reservoir, CO (Colorado, Front Range Region, CO, US West Region, USA) |
188 ft | Also known as Horsetooth Lake On the high, arid ridges and plains of Colorado’s Front Range, Horsetooth Reservoir delights the visitor and refreshes the senses. Developed as a stor… |
| Carter Lake CO (Colorado, Front Range Region, CO, US West Region, USA) |
180 ft | Also known as Carter Lake Reservoir, Carter Reservoir Carter Lake is a major source of fun for residents and visitors to the Loveland area of Colorado’s Front Range. The reservoir is one of two main stora… |
| Lake Pueblo, CO (Colorado, Southeast Colorado, US West Region, USA) |
135 ft | Lake Pueblo is located west of Pueblo, Colorado and was formed when the Arkansas River was dammed as a part of the Fryingpan/Arkansas project of the B… |
| Aurora Reservoir, CO (Colorado, Denver Area, CO, US West Region, USA) |
110 ft | If you’re looking for a peaceful, activity-oriented Colorado vacation in the Denver Region, you can’t go wrong with Aurora Reservoir. This 820-acre ci… |
| Vallecito Lake, CO (Colorado, Southeast Colorado, US West Region, USA) |
110 ft | Also known as Vallecito Reservoir The quest for a reliable source of irrigation water in Colorado’s dry Southwest Region brought Vallecito Lake into being. Twenty-two miles north of Du… |