Lakes / Wyoming / Crook County / Hagerman Reservoir
Hagerman Reservoir, Wyoming
37.07 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Wyoming
44.25 degrees N, 104.59 degrees W - Crook County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Wyoming Game and Fish Department coordinates, not by eye. Schematic - not a survey map.
How Hagerman Reservoir Stacks Up
- Larger than 39% of the 783 lakes counted in Wyoming.
- About 130 miles from Casper, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Arrowhead Reservoir | Crook | 2.2 mi | 38.05 acres |
| C B | Weston | 8.3 mi | 27.02 acres |
| Keyhole Reservoir | Crook | 14 mi | 8,862.41 acres |
| Y T Reservoir | Weston | 23 mi | 30.26 acres |
| Rocky Ford Reservoir | Crook | 25 mi | 28.86 acres |
| Klodt Reservoir | Weston | 34 mi | 74.65 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Hagerman Reservoir
How Big Is Hagerman Reservoir?
Hagerman Reservoir covers 37.07 acres in Crook County, Wyoming.
What Is the Largest Lake in Crook County?
Keyhole Reservoir is the largest lake in Crook County, at 8,862.41 acres.
Deepest Natural Lakes in Wyoming
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Deep Lake | Park | 285 acres | 472 ft |
| 2 | Lake Reno | Park | 107 acres | 222 ft |
| 3 | Snowdrift Lake | Teton | 57 acres | 174 ft |
| 4 | Crater Lake | Big Horn | 39 acres | 166 ft |
| 5 | Beauty Lake | Park | 94 acres | 165 ft |
All 120 Wyoming lakes ranked by depth
Largest Lakes in Wyoming
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Yellowstone Lake | Teton | 84,442 acres | - |
| 2 | Flaming Gorge Reservoir | Sweetwater | 38,888.36 acres | 440 ft |
| 3 | Jackson Lake | Teton | 26,853.22 acres | - |
| 4 | Pathfinder Reservoir | Carbon | 22,000 acres | 192 ft |
| 5 | Seminoe Reservoir | Carbon | 20,000 acres | 200 ft |
All 783 Wyoming lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 140524458). Verified October 30, 2026.