Where to Find Thorium in the United States
1 mapped thorium spots across 1 U.S. states. Thorium 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 thorium across the United States, with 1 mapped spots
Top states for thorium
States ranked by number of thorium spots in our database. States in bold link to a focused thorium-in-state list.
Every thorium spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Henry mining districtFlat Top Road | Sevier County | 38.5246, -112.2399 | Public |
Thorium rockhounding FAQ
Where is the best place to find thorium in the U.S.?+
Utah have the highest concentrations of thorium in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many thorium 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 thorium on public land?+
Casual hand collecting of common rocks and minerals like thorium 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 thorium in the field?+
Field identification of thorium 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 thorium on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
