Lakes / Colorado / Routt County / Long Lake
Long Lake, Routt County, Colorado
34 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Colorado
40.47 degrees N, 106.69 degrees W - Routt 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 Long Lake Stacks Up
- Larger than 21% of the 778 lakes counted in Colorado.
- About 81 miles from Boulder, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Fish Creek Reservoir | Routt | 1.5 mi | 76 acres |
| Dumont Lake | Grand | 5.6 mi | 43 acres |
| Lake Agnes | Grand | 9.7 mi | 107 acres |
| Lake Catamount | Routt | 10 mi | 525 acres |
| Agua Fria Lake | Jackson | 11 mi | 28 acres |
| Lake Margaret | Routt | 12 mi | 29 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Long Lake
How Big Is Long Lake?
Long Lake covers 34 acres in Routt County, Colorado.
What Is the Largest Lake in Routt County?
Steamboat Lake is the largest lake in Routt County, at 968 acres.
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 90201223). Verified October 30, 2026.