Where to Find Black Agate in the United States
2 mapped black agate spots across 2 U.S. states. Black Agate 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 black agate across the United States, with 2 mapped spots
Top states for black agate
States ranked by number of black agate spots in our database. States in bold link to a focused black agate-in-state list.
Every black agate spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Warm Springs Reservoir | Harney County |
| 43.6216, -118.2435 | Public |
| Blue Valley | Beaver County |
| 38.1745, -112.6156 | Public |
Black Agate rockhounding FAQ
Where is the best place to find black agate in the U.S.?+
Oregon, Utah have the highest concentrations of black agate in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many black agate rockhounding spots does RockHoundR track?+
2 mapped spots across 2 states. The app keeps these on a map alongside your private finds.
Can I legally collect black agate on public land?+
Casual hand collecting of common rocks and minerals like black agate 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 black agate in the field?+
Field identification of black agate 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 black agate on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
