Where to Find Nodules Filled With Opal in the United States
1 mapped nodules filled with opal spots across 1 U.S. states. Nodules Filled With 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 nodules filled with opal across the United States, with 1 mapped spots
Top states for nodules filled with opal
States ranked by number of nodules filled with opal spots in our database. States in bold link to a focused nodules filled with opal-in-state list.
Every nodules filled with opal spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| General AreaBalm Fork Road | Morrow County |
| 45.3274, -119.5130 | Permission |
Nodules Filled With Opal rockhounding FAQ
Where is the best place to find nodules filled with opal in the U.S.?+
Oregon have the highest concentrations of nodules filled with opal in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many nodules filled with 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 nodules filled with opal on public land?+
Casual hand collecting of common rocks and minerals like nodules filled with 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 nodules filled with opal in the field?+
Field identification of nodules filled with 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 nodules filled with opal on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
