Geology

Black Hills Rockhound Area

Greenlee County, AZ

Coordinate verified

BLM-designated collecting area between Safford and Clifton on the north side of US-191, known worldwide for fire agate in weathered basalt and rhyolite. Free day-use and dispersed camping with excellent dark skies; one of the few public fire-agate localities open to casual rockhounds.

Field facts

RegionGreenlee County, AZ
Coordinates32.8740, -109.3950
AccessUS-191 north of Safford; dirt spur (Cueto Ranch / signed BLM access) ~2 mi to collecting flats
AgencyBLM Safford Field Office
MaterialFire agate, chalcedony, common opal in volcanic host rock
NearbySafford, Clifton/Morenci, Gila Box RNCA, Round Mountain Rockhound Area

Nearby locations

Nearby amenities

Public recreation data — BLM & Recreation.gov (RIDB). Verify current access, fees, and seasonal closures before traveling.

Map preview

Explore the area

The interactive map and its tiles load only when requested.

Plan ahead. Leave no trace. Verify current access before traveling.