Where to Find Banded Opal in the United States
1 mapped banded opal spots across 1 U.S. states. Banded 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.
Map showing where to find banded opal across the United States, with 1 mapped spots
Top states for banded opal
States ranked by number of banded opal spots in our database. States in bold link to a focused banded opal-in-state list.
Every banded opal spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| ChallisGarden Creek Road | Custer County |
| 44.4940, -114.2999 | Public |
Banded Opal rockhounding FAQ
Where is the best place to find banded opal in the U.S.?+
Idaho have the highest concentrations of banded opal in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many banded 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 banded opal on public land?+
Casual hand collecting of common rocks and minerals like banded 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 banded opal in the field?+
Field identification of banded 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 banded opal on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
