Hereford is an unincorporated community in Cochise County along the San Pedro Riparian National Conservation Area in the southern part of the U.S. state of Arizona. It is south of Sierra Vista and is a part of the Sierra Vista-Douglas micropolitan area. The elevation is 4,193 feet at the location of the original townsite at the far eastern end of the unincorporated area the residential area runs for another 8 miles west from this location.Hereford was a common stop for travelers heading from Tombstone down the San Pedro River en route to Naco, Arizona and thence Mexico, approximately 14 miles away. The original townsite was populated until the 1950s, and the last structures disappeared in the early 1960s. Nothing remains of the original townsite except for a few concrete foundations and the ballasted rail bed, the rails and ties having been pulled in 2000.