Fort established 1852 as Camp San Saba; later named for Capt. Henry McKavett, killed at Battle of Monterrey in Mexican War. Abandoned during the Civil War; reoccupied by Col. Ranald S. Mackenzie in 1868. By 1876 there were stone barracks for eight infantry companies, 12 officers' quarters, a hospital, guardhouse, magazine, bakery, post office, large headquarters building, storehouses and stables. Importance declined after 1874 when Army offensive produced several major victories, the most significant in Palo Duro Canyon (see CANYON). Post abandoned in 1883. Extensive restoration of ruins. Interpretive exhibits in original hospital feature historical photos, dioramas, and some 200 artifacts.