| Terrace Reservoir | |
| Location: | Conejos County, Colorado |
| Coordinates: | [1] |
| Type: | reservoir |
| Inflow: | Alamosa River |
| Outflow: | Alamosa River |
| Designation: | Terrace Reservoir State Wildlife Area |
| Date-Built: | [2] |
| Volume: | 19195acre.ft |
| Elevation: | 8530abbr=offNaNabbr=off |
| Pushpin Map: | Colorado |
| Pushpin Label Position: | top |
| Pushpin Map Alt: | A map of Colorado with a dot showing the location of Terrace Reservoir |
| Pushpin Map Caption: | Location in Colorado |
Terrace Reservoir is located in Conejos County, Colorado northwest of the town of Capulin. It is surrounded by the Rio Grande National Forest. The reservoir is owned by the Terrace Irrigation Company, which uses the water it stores to irrigate agricultural crops in the nearby San Luis Valley.
The lake and the land immediately surrounding it are also designated as the Terrace Reservoir State Wildlife Area. The wildlife area offers hunting and fishing.[3]
The dam (National ID # CO00815) is an earthen dam built in 1912. It is split into two sections, with a mountain in the middle separating the two. The reservoir drains to the Alamosa River through a penstock on the southern segment of the dam. The spillway, which is on the northern dam segment, was replaced sometime after 2012.[4]