Public BLM Sonoran Desert slopes west of Phoenix near Tonopah where rockhounds hunt fire agate, chalcedony roses, and quartz among volcanic float. A long-standing Gem Trails / rockhounding guidebook locality with dispersed camping and a summit hike; gem-quality fire agate is scarce after decades of collecting, so patience and ethics matter.
Field facts
| Region | Maricopa County, AZ |
|---|---|
| Coordinates | 33.4398, -113.0390 |
| Material | Fire agate / chalcedony / quartz |
| Land | BLM public domain (claims may exist) |
| Access hub | Tonopah / I-10 corridor |
| Reference | Gem Trails of Arizona |
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