Battle of Blanco Canyon

The Battle of Blanco Canyon was the decisive battle of Col. Ranald S. Mackenzie's initial campaign against the Comanche in West Texas, and marked the first time the Comanches had been attacked in the heart of their homeland. It was also the first time a large military force explored the heart of Comancheria. On 12 August 1871 Mackenzie and Colonel Benjamin Grierson were asked by Indian Agent Lawrie Tatum to begin an expedition against the Kotsoteka and Quahadi Comanche bands, both of whom had refused to relocate onto a reservation after the Warren Wagon Train Raid.^: 158 Col. Mackenzie assembled a powerful force consisting of eight companies of the Fourth United States Cavalry, two companies of the Eleventh Infantry, and a group of twenty Tonkawa scouts.^: 158