Where to Find Williamsite in the United States
5 mapped williamsite spots across 2 U.S. states. Williamsite 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 williamsite across the United States, with 5 mapped spots
Top states for williamsite
States ranked by number of williamsite spots in our database. States in bold link to a focused williamsite-in-state list.
Every williamsite spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Funks Pond Recreational AreaFunks Pond Trail | Cecil County |
| 39.6707, -76.1718 | Public |
| Rock SpringsOld Mill Road | Cecil County |
| 39.7201, -76.1763 | Public |
| WrightsdaleHorseshoe Loop Road | Chester County |
| 39.7275, -76.1326 | Public |
| Cecil CountyQuarry Road | Lancaster County |
| 39.7205, -76.1459 | Public |
| Easton5th Street | Northampton County | 40.7472, -75.2871 | Public |
Williamsite rockhounding FAQ
Where is the best place to find williamsite in the U.S.?+
Pennsylvania, Maryland have the highest concentrations of williamsite in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many williamsite rockhounding spots does RockHoundR track?+
5 mapped spots across 2 states. The app keeps these on a map alongside your private finds.
Can I legally collect williamsite on public land?+
Casual hand collecting of common rocks and minerals like williamsite 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 williamsite in the field?+
Field identification of williamsite 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 williamsite on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
