U.S. Rockhounding Atlas

Rockhounding Spots by State

Browse 2,800+ rockhounding locations across 50 U.S. states and 1,073 counties. Every state page lists named spots, the rocks and minerals you can find, public land context, and exact coordinates so you can plan a trip before you drive out.

Mapped spots
2,800+

Mapped spots

States
50

States

Counties
1,073

Counties

Minerals to search
796

Minerals to search

Browse by region

States are grouped by the geology you will actually find on the ground. Each card shows how many spots and counties we have mapped, plus the rocks you are most likely to find there.

Near major cities

All cities →

Closest mapped spots within roughly a 2 to 3 hour drive.

Guaranteed access

Fee dig sites →

Pay-to-dig mines and ranches charge for entry and let you keep what you find. The directory maps every fee dig we track, grouped by state.

U.S. rockhounding FAQ

Is rockhounding legal in the United States?+
Yes. Casual hand collecting of common rocks and minerals 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. Specific rules vary by state and managing agency.
Where can I rockhound for free in the U.S.?+
BLM-managed land in the western states (Arizona, Nevada, New Mexico, Oregon, Utah, Wyoming) and U.S. National Forests in those regions offer the most free public-access rockhounding. Many states also designate specific public-collecting areas. See the state pages for site-specific guidance.
Do I need a permit or mining claim to collect rocks on public land?+
For casual, hobby-level collecting of common rocks, minerals, and petrified wood, you generally do not need a permit or a claim on BLM and Forest Service land, as long as you stay within the published daily and annual limits and use only hand tools. Selling what you collect, using power equipment, or removing vertebrate fossils requires permits. Confirm current rules with the local field office before you dig.
How many rockhounding spots does RockHoundR map in the United States?+
RockHoundR currently maps 2,800+ rockhounding spots across 48 states and 1,073 counties. Each spot includes coordinates, mineral lists, public-land status, and access notes.
Which U.S. states are best for rockhounding?+
Oregon, Arkansas, Arizona, California, Montana, Nevada, and Utah consistently rank among the most productive states, combining diverse geology, generous public-collecting rules, and well-known producing localities. Browse each state page for the top spots.
What is the best time of year to go rockhounding?+
Spring and fall are ideal in most regions: temperatures are mild and recent rain often exposes fresh material in washes and road cuts. Deserts in Arizona, Nevada, and Utah are best from late fall through spring, while higher-elevation sites in the Mountain West open up in summer once the snow clears.

Plan trips, save spots, check land in the app

The RockHoundR app turns this list into a map you can filter, save, and use offline. Public land overlays, geology, and weather built in.

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