Lakes / Colorado / Costilla County
Lakes in Costilla County, Colorado
7 lakes counted in Costilla County - the largest is Sanchez Reservoir at 763 acres.
7
Lakes Counted
763 acres
Largest - Sanchez Reservoir
Costilla County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Sanchez Reservoir | Costilla | 763 acres | - |
| 2 | Smith Reservoir | Costilla | 674 acres | - |
| 3 | Eastdale Reservoir Number 1 | Costilla | 151 acres | - |
| 4 | Mountain Home Reservoir | Costilla | 131 acres | - |
| 5 | Forbes Park Lake | Costilla | 45 acres | - |
| 6 | Willow Creek Reservoir | Costilla | 45 acres | - |
| 7 | Stabilization Reservoir | Costilla | 41 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.