Fort Supply, Military fort ruins in Woodward County, Oklahoma, US.

Fort Supply Historic District preserves five original army buildings: the 1874 Ordnance Sergeant's Quarters and 1882 Civilian Employee Quarters, both picket-style log structures; the frame 1878 Commanding Officer's Quarters and duplex 1882 Officers' Quarters; and the brick 1892 Guard House, which holds artifacts and photographs. Replicas of the 1869 stockade, an army supply wagon, a mountain howitzer and a Cheyenne tipi stand on the grounds.

The United States Army established this supply base in 1868 to support General Philip Sheridan's winter campaign against Southern Plains Indian tribes. After decades of military use, the property was transformed into a state facility in 1908 for new purposes.

The 1874 Ordnance Sergeant's Quarters is a picket-style log building, its walls made of vertical logs set side by side. Nearby stand the 1882 Civilian Employee Quarters, also picket-style, and the frame 1878 Commanding Officer's Quarters. The site also holds replicas of the 1869 stockade, an army supply wagon, a mountain howitzer and a Cheyenne tipi.

The Oklahoma Historical Society runs a visitor center with exhibits on Fort Supply and northwest Oklahoma. Five original structures are being restored, including the 1892 brick guardhouse, which holds artifacts and photographs. Replicas of the 1869 stockade, an army supply wagon, a mountain howitzer and a Cheyenne tipi stand on the grounds.

The site was converted from a military installation into Oklahoma's first state-operated mental health facility in 1908. This dramatic change in purpose shows how the buildings were adapted for entirely different functions and remains a surprising part of its past.