Geology

Aztec Peak

Gila County, AZ

Coordinate verified

Highest summit of the Sierra Ancha (~7,694 ft) in Tonto National Forest, capped by Cambrian sandstone analogous to Grand Canyon Tapeats and ringed by Proterozoic Apache Group quartzites and diabase that form the range’s cliffed skyline. A driveable high forest road and lookout/summit area give a classic field view of central Arizona’s transitional-zone geology above Workman Creek country.

Field facts

RegionGila County, AZ
Coordinates33.8125, -110.9076
AgencyUSFS Tonto National Forest / Sierra Ancha
Elevation7,694 ft (GNIS summit)
GeologyApache Group quartzites/diabase; Tapeats-equivalent summit sandstone; Ruin Granite basement
SettingSierra Ancha Wilderness perimeter / high mesa cliffs

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