what county is huachuca city az in
Fort Huachuca is a United States Army installation, established 3 March 1877 as Camp Huachuca. The garrison is now under the command of the United States Army Installation Management Command. It is located in Cochise County, in southeast Arizona, about 15 miles (24 km) north of the border with Mexico and at the northern end of the Huachuca Mountains, next to the town of Sierra Vista. From 1913 to 1933 the fort was the base for the Buffalo Soldiers of the 10th Cavalry Regiment.