Oahe Downstream Recreation Area by Congress transferred ownership of the recreation area to the State of South Dakota in 2002. Oahe Downstream Recreation Area Oahe Downstream Recreation Area is a state recreation area in Stanley County, South Dakota in the United States. The recreation area is named for being immediately downstream of the Oahe Dam and Lake Oahe, a U.S. Army Corps of Engineers dam and reservoir. The recreation area is located along the Missouri River and is popular for camping, fishing and other water-based recreation. The area is located about 7 miles upstream of Pierre - the state capitol. The recreation area was
Gillespie Dam Gillespie Dam The Gillespie Dam is a concrete gravity dam located on the Gila River between the towns of Buckeye and Gila Bend, Arizona. The dam was constructed during the 1920s for primarily irrigation purposes. A portion of the dam failed unexpectedly in 1993 during unusually heavy rains. The Gillespie Dam was constructed circa 1920 by a local rancher, Frank Gillespie, to replace an existing structure. As the dam was located at an important river crossing that would later become US Route 80, the Arizona Highway Department - the predecessor to the Arizona Department of Transportation - constructed a concrete