Antelope Flat Reservoir is an impoundment located in the southern part of the Maury Mountains in Crook County, Oregon.

It is formed by a 33-foot (10 m) high earth-fill dam built across Bear Creek for irrigation purposes.

Though it covers 170 acres (69 ha) when full, and has a storage capacity of almost 2,000 acre-feet (2,500,000 m3) with a maximum depth of 28 feet (8.5 m) and average depth of 11 feet (3.4 m), the reservoir is often not filled to capacity, especially late in the irrigation season.

[2] A boat-launch ramp is located at the lake's western end, and a 24-unit campground lies just up the hill from there.

This Crook County, Oregon state location article is a stub.