In 1870 a supply road was established between Fort Supply and the Cheyenne-Arapaho agency in Darlington, O.T. The road and telegraph line were built as an extension of the Fort Dodge KS - Fort Supply Trail and extended to Fort Reno in 1875. In constant use by the Army, Indians, and traders, this artery played a prominent part in the history of Oklahoma before the coming of the railroads.