Lakes / Colorado / Rio Blanco County
Lakes in Rio Blanco County, Colorado
10 lakes counted in Rio Blanco County - the largest is Big Beaver Reservoir at 205 acres.
10
Lakes Counted
205 acres
Largest - Big Beaver Reservoir
Rio Blanco County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Big Beaver Reservoir | Rio Blanco | 205 acres | - |
| 2 | Rio Blanco Lake | Rio Blanco | 119 acres | - |
| 3 | Allen Basin Reservoir | Rio Blanco | 83 acres | - |
| 4 | Marvine Lakes | Rio Blanco | 76 acres | - |
| 5 | Marvine Lakes | Rio Blanco | 66 acres | - |
| 6 | Crosho Lake | Rio Blanco | 53 acres | - |
| 7 | D D and E Wise Reservoir | Rio Blanco | 50 acres | - |
| 8 | Sheriff Reservoir | Rio Blanco | 36 acres | - |
| 9 | Vaughan Lake | Rio Blanco | 33 acres | - |
| 10 | Heart Lake | Rio Blanco | 28 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.