U.S. Army Chief of Engineers and Commanding General of the U.S. Army Corps of Engineers Lt. Gen. Thomas P. Bostick, is briefed on power plant operations Dec. 7, 2015 at the Keystone Dam Powerhouse, near Mannford Okla. Bostick visited the Tulsa District to thank district employees for their hard work in meeting challenging mission requirements and maintaining positive stakeholder relationships. (U.S. Army Photo by Preston L. Chasteen/Released)