Later, the camp served to protect the Cheyenne and Arapaho reservations, under the Darlington Agency, from incursions by whites.

One of the last missions troops from Fort Supply performed was bringing to end the violence of the Enid-Pond Creek Railroad War during the summer of 1894.

Dix and his deputies had been unable to quell the wrecking of trains, destruction of tracks, and demolition of trestles by residents from both communities.

In 1908 Oklahoma's first insane asylum was established at the old post and which is now called the Western State Psychiatric Center.

The site also features replicas of the 1869 stockade, an army supply wagon, a mountain howitzer, and a Cheyenne tipi.