Rocks & minerals by U.S. state
Geology changes the moment you cross a state line. Pick a state to see the rocks, minerals, gemstones, and fossils most often reported on rockhounding trips there, each with a field-ID guide and mapped locations.
- Alabama45 rocks · 22 mapped spots→
- Arizona33 rocks · 52 mapped spots→
- Arkansas32 rocks · 32 mapped spots→
- California78 rocks · 97 mapped spots→
- Colorado50 rocks · 28 mapped spots→
- Connecticut56 rocks · 48 mapped spots→
- Delaware3 rocks · 10 mapped spots→
- Florida22 rocks · 38 mapped spots→
- Georgia56 rocks · 97 mapped spots→
- Idaho66 rocks · 114 mapped spots→
- Illinois27 rocks · 29 mapped spots→
- Indiana30 rocks · 32 mapped spots→
- Iowa20 rocks · 49 mapped spots→
- Kansas29 rocks · 46 mapped spots→
- Kentucky33 rocks · 36 mapped spots→
- Louisiana4 rocks · 17 mapped spots→
- Maine61 rocks · 27 mapped spots→
- Maryland42 rocks · 38 mapped spots→
- Massachusetts42 rocks · 43 mapped spots→
- Michigan19 rocks · 22 mapped spots→
- Minnesota18 rocks · 49 mapped spots→
- Mississippi5 rocks · 11 mapped spots→
- Missouri60 rocks · 94 mapped spots→
- Montana54 rocks · 87 mapped spots→
- Nebraska13 rocks · 32 mapped spots→
- Nevada52 rocks · 118 mapped spots→
- New Hampshire27 rocks · 34 mapped spots→
- New Jersey68 rocks · 68 mapped spots→
- New Mexico80 rocks · 119 mapped spots→
- New York58 rocks · 70 mapped spots→
- North Carolina111 rocks · 198 mapped spots→
- North Dakota14 rocks · 20 mapped spots→
- Ohio20 rocks · 25 mapped spots→
- Oklahoma32 rocks · 34 mapped spots→
- Oregon41 rocks · 72 mapped spots→
- Pennsylvania68 rocks · 86 mapped spots→
- Rhode Island23 rocks · 16 mapped spots→
- South Carolina45 rocks · 48 mapped spots→
- South Dakota37 rocks · 43 mapped spots→
- Tennessee42 rocks · 59 mapped spots→
- Texas54 rocks · 85 mapped spots→
- Utah124 rocks · 246 mapped spots→
- Vermont34 rocks · 28 mapped spots→
- Virginia75 rocks · 93 mapped spots→
- Washington39 rocks · 92 mapped spots→
- West Virginia23 rocks · 34 mapped spots→
- Wisconsin65 rocks · 64 mapped spots→
- Wyoming62 rocks · 82 mapped spots→
Hunt by state in the app
RockHoundR shows what each spot produces, who manages the land, and how to get there — wherever you are in the country.
