Lakes / Colorado / Larimer County / Arrowhead Lake
Arrowhead Lake, Colorado
34 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Colorado
40.38 degrees N, 105.76 degrees W - Larimer 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 Arrowhead Lake Stacks Up
- Larger than 22% of the 778 lakes counted in Colorado.
- About 36 miles from Boulder, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Inkwell Lake | Grand | 0.8 mi | 32 acres |
| Long Draw Reservoir | Larimer | 8.0 mi | 339 acres |
| Crystal Lake | Larimer | 8.4 mi | 25 acres |
| Lake Nanita | Grand | 9.2 mi | 33 acres |
| Columbine Lake | Grand | 10.0 mi | 30 acres |
| Grand Lake | Grand | 10 mi | 483 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Arrowhead Lake
How Big Is Arrowhead Lake?
Arrowhead Lake covers 34 acres in Larimer County, Colorado.
What Is the Largest Lake in Larimer County?
Horsetooth Reservoir is the largest lake in Larimer County, at 1,817 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 120819051). Verified October 30, 2026.