To protect Butterfield Overland Despatch stage and freight wagons traveling the Smoky Hill Trail from Cheyenne and Arapaho attacks, the U.S. Army established Fort Fletcher on October 11, 1865. Named after then governor of Missouri Thomas C. Fletcher, the fort was located on the trail mile south of the confluence of Big Creek and the North Fork of Big Creek in western Kansas. Lt. Col. William Tamblyn and three companies of the 1st U.S. Volunteer Infantry established the post and were stationed there along with detachments of the 13th Missouri Cavalry. Raids on the stage line continued despite the military presence, and the line soon went bankrupt. Use of the trail ceased, and Fort Fletcher closed on May 5, 1866.