The Chiricahua Mountains, and other associated ranges, along with Sulphur Springs Valley on the west and the San Simon Valley on the east, form the eastern half of Cochise County in southeast Arizona. The Pedregosa Mountains are found at the southern end of the Chiricahua Mountains, while the Swisshelm Mountains are located to the southwest. The northwest end of the Chiricahua mountains continue as the Dos Cabezas Mountains beyond Apache Pass and the Fort Bowie National Historic Site. Access to the Chiricahua Mountains and Coronado National Forest is through Willcox from the north, Douglas from the south, and Rodeo from the east.