Lakes / Colorado / Costilla County / Smith Reservoir
Smith Reservoir, Costilla County, Colorado
674 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Colorado
37.39 degrees N, 105.53 degrees W - Costilla 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 Smith Reservoir Stacks Up
- Larger than 92% of the 778 lakes counted in Colorado.
- About 107 miles from Colorado Springs, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Mountain Home Reservoir | Costilla | 7.9 mi | 131 acres |
| Willow Creek Reservoir | Costilla | 12 mi | 45 acres |
| Stabilization Reservoir | Costilla | 15 mi | 41 acres |
| Adams Lake | Alamosa | 18 mi | 44 acres |
| Forbes Park Lake | Costilla | 19 mi | 45 acres |
| Sanchez Reservoir | Costilla | 22 mi | 763 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Smith Reservoir
How Big Is Smith Reservoir?
Smith Reservoir covers 674 acres in Costilla County, Colorado.
What Is the Largest Lake in Costilla County?
Sanchez Reservoir is the largest lake in Costilla County, at 763 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 136497076). Verified October 30, 2026.