Lakes / Colorado / Dolores County / Groundhog Reservoir
Groundhog Reservoir, Colorado
544 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Colorado
37.80 degrees N, 108.30 degrees W - Dolores County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How Groundhog Reservoir Stacks Up
- Larger than 91% of the 778 lakes counted in Colorado.
- The largest lake in Dolores County among those counted.
- About 89 miles from Grand Junction, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Miramonte Reservoir | San Miguel | 12 mi | 417 acres |
| Cone Reservoir | San Miguel | 14 mi | 184 acres |
| Gurley Reservoir | San Miguel | 16 mi | 319 acres |
| Glade Lake | Dolores | 20 mi | 47 acres |
| Trout Lake | San Miguel | 23 mi | 130 acres |
| McPhee Reservoir | Montezuma | 23 mi | 4,335 acres |
Straight-line distance between lake centers.
Facts and Figures
Largest Lakes in Colorado
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | John Martin Reservoir | Bent | 11,686 acres | - |
| 2 | Blue Mesa Reservoir | Gunnison | 8,944 acres | - |
| 3 | Lake Granby | Grand | 7,075 acres | - |
| 4 | Lake Meredith | Crowley | 5,539 acres | - |
| 5 | Adobe Creek Reservoir | Bent | 4,770 acres | - |
All 778 Colorado lakes ranked by surface area
Sources: USGS NHD (The National Map NHD MapServer layer 12) named waterbodies FTYPE 390/436; counties via Census point-in-polygon lake data (ID 87433049). Verified October 30, 2026.