Thief Valley Dam and Reservoir are on the Powder River 16 miles north of Baker, Oregon. Most of the 909 acres of the Thief Valley Reservoir area are inundated, with 740 acres of water surface providing about 10 miles of shoreline. A portion of the reservoir area has been set aside for recreational use. Camping, picnicking, and boat launching and mooring facilities have been constructed. Union County administers this site for Reclamation. The reservoir has developed a reputation for excellent fishing for trout, largemouth bass, and black crappie which have been planted in the reservoir. Large numbers of waterfowl use the reservoir and ducks have established nests.

North on Interstate 84 from Baker City about 17 miles to state route 237.