Where to Find Precious Opal in the United States
1 mapped precious opal spots across 1 U.S. states. Precious Opal is reported at multiple rockhounding spots across the United States. The map below shows where collectors most often find it on legal public ground.
Learn about precious opal: properties & identification →Map showing where to find precious opal across the United States, with 1 mapped spots
Top states for precious opal
States ranked by number of precious opal spots in our database. States in bold link to a focused precious opal-in-state list.
Every precious opal spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Rainbow Ridge Opal MineSagebrush Creek Road | Humboldt County |
| 41.7975, -119.0152 | Public |
Precious Opal rockhounding FAQ
Where is the best place to find precious opal in the U.S.?+
Nevada have the highest concentrations of precious opal in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many precious opal rockhounding spots does RockHoundR track?+
1 mapped spots across 1 states. The app keeps these on a map alongside your private finds.
Can I legally collect precious opal on public land?+
Casual hand collecting of common rocks and minerals like precious opal is allowed on most BLM and U.S. Forest Service land, with daily and annual limits set by the local field office. National parks, most state parks, and tribal land are off-limits. Always check with the managing agency before a trip.
How do I identify precious opal in the field?+
Field identification of precious opal comes down to color, hardness, fracture, and luster. The RockHoundR app links to geology details for each spot to help narrow down what you might be picking up.
Hunt precious opal on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
