| DeWeese Reservoir | |
| Location: | Custer County, Colorado |
| Coordinates: | [1] |
| Type: | reservoir |
| Etymology: | Named for Dall DeWeese, who along with C.R.C. Dye incorporated the DeWeese-Dye Ditch and Reservoir Company[2] |
| Inflow: | Grape Creek |
| Outflow: | Grape Creek |
| Designation: | DeWeese Reservoir State Wildlife Area |
| Date-Built: | — |
| Volume: | 3542acre.ft[3] |
| Elevation: | 7671abbr=offNaNabbr=off |
| Frozen: | Freezes in winter |
| Pushpin Map: | Colorado |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location in Colorado |
DeWeese Reservoir is located in northern Custer County, Colorado between the Sangre de Cristo Mountains and the Wet Mountains. The reservoir is owned by the DeWeese-Dye Ditch and Reservoir Company, which uses the water it stores to irrigate agricultural crops around Lincoln Park and Brookside in Fremont County, Colorado.[4]
The ditch and reservoir company owns the land under the reservoir and most of the land around it. The company has arrangements with other organizations to store water and for the use of the space. For example, it stores 500acre.ft for Colorado Parks and Wildlife, it stores 500acre.ft for the Bureau of Land Management (which also owns some land near the reservoir), and it stores some water for the Upper Arkansas Water Conservancy District and the Round Mountain Water District, a local water company.
The lake and the land immediately surrounding it are also designated as the DeWeese Reservoir State Wildlife Area. It offers coldwater stream and lake fishing, hunting, and picnicking, hiking, wildlife viewing, and camping.[5]