Miller Peak, Mountain summit in Huachuca Mountains, Arizona, US

Miller Peak is the highest summit of the Huachuca Mountains, reaching 9,470 feet (2,886 m) in the Miller Peak Wilderness of Coronado National Forest, about 10 miles south of Sierra Vista, Arizona. It is the most southerly peak in the continental United States to rise above 9,000 feet. The 2011 Monument Fire burned most of the pine forest on its slopes, and scrub oak is now replacing the pines.

Miller Peak lies just under 7 km from the Mexican border, and the Coronado National Memorial sits to its southeast. The sources record no late-1800s military observation role for the summit; the peak's documented identity is topographic, as the highest point of the Huachuca Mountains in Cochise County.

The peak lies just under 7 km from the Mexican border, and the Coronado National Memorial sits to its southeast, marking the 1540-1542 expedition of Francisco Vázquez de Coronado through this region. The Miller Peak Wilderness, 20,190 acres managed by Coronado National Forest, covers the mountain's surroundings.

The hike to the summit is demanding and requires good preparation, especially for carrying enough water and protective gear for changing weather. The trail is well marked throughout but can be slippery and exposed at higher elevations.

The 2011 Monument fire burned most of the pine trees seen in older photographs of Miller Peak, and scrub oak is now beginning to replace areas previously covered by pine. The Miller Peak Wilderness, managed by Coronado National Forest, covers 20,190 acres.