Deweese-Dye Reservoir, located between the Sangre de Cristo Mountains and Wet Mountains in Custer County, Colorado, is a 318-acre impoundment that serves as both an irrigation reservoir and State Wildlife Area. Critical paddling restriction: vessel use is only permitted while actively fishing - other water recreation is limited to property owners with deeded recreation rights.

The reservoir spans 208 acres of the 2,336-acre wildlife area and reflects the dramatic peaks of the Sangre de Cristo range. The lake features a dam at the head of Grape Creek Canyon, approximately 6 miles north of Westcliffe. Vault toilets and picnic tables represent the extent of amenities available.

Wildlife viewing opportunities include white pelicans, grebes, avocets, and various waterfowl, with many species nesting near the shoreline. Willows along the lake's head provide habitat for warblers and songbirds. The lake supports populations of rainbow trout, brown trout, brook trout, smallmouth bass, and tiger muskie.

The lake occasionally experiences blue-green algae blooms during warmer weather, typically monitored and managed by Colorado Parks and Wildlife. A valid hunting or fishing license or State Wildlife Area pass is required for all visitors 16 and older.

For those authorized to paddle while fishing, the lake is open year-round when conditions permit. The surrounding terrain includes rolling gravel roads with some challenging hills on the east end, and the landscape transitions between sagebrush prairie and willow-lined shorelines. Basic camping is available around the lake and in a designated campground area, though reservations are required for camping.