Rockhounding in Pennington County, South Dakota
8 mapped rockhounding spots in Pennington County. Most commonly produces agate, aquamarine, beryl, chalcedony.
Every rockhounding spot in Pennington County
KeystonePennington County, South DakotaPublic access · Tourmaline, Spodumene, Lepidolite +5
ScenicPennington County, South DakotaPermission required · Blue Chalcedony, Carnelian, Aquamarine +4- Hill CityPennington County, South DakotaPublic access · Beryl, Red Cassiterite, Cervantite +3
- RochfordPennington County, South DakotaCheck locally · Arsenopyrite, Galena, Gold +3
- Cheyenne River - Buffalo GapPennington County, South DakotaPublic access · Fairburn Agate, Agate, Rose Quartz +1
- Railroad ButtesPennington County, South DakotaPublic access · Fairburn Agate, Agate, Rose Quartz +1
- Rapid CityPennington County, South DakotaPermission required · Golden Barite, Fossil
- Pennington CountyPennington County, South DakotaPublic access · Amethyst
Minerals reported in Pennington County
Neighboring counties in South Dakota
Adjacent rockhounding counties, ranked by how close their centroids sit to Pennington County. A natural extension if Pennington County is already on your trip plan.
- Custer County~30 mi13 spotsTop: Fairburn Agate, Agate, Almandine Garnet
- Meade County~31 mi5 spotsTop: Amber Barite, Barite, Calcite
- Oglala Lakota County~38 mi4 spotsTop: Agate, Chalcedony, Jasper
- Lawrence County~49 mi4 spotsTop: Amethyst, Chalcedony, Geode
- Fall River County~56 mi3 spotsTop: Agatized Wood, Fairburn Agate, Jasper
- Harding County~120 mi1 spotTop: Chalcedony, Moss Agate
Across the state line from Pennington County
Rockhounding counties in neighboring states within driving range. Geology rarely respects state borders. These are often the closest mapped spots you can reach without going deeper into South Dakota.
Pennington County FAQ
Where can I rockhound in Pennington County, South Dakota?+
RockHoundR tracks 8 rockhounding spots in Pennington County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.
What rocks and minerals are common in Pennington County?+
Spots in Pennington County most often produce Agate, Aquamarine, Beryl, Chalcedony, Fairburn Agate. Individual spots can vary widely.
Are these Pennington County rockhounding spots on public land?+
Most spots in this list are tagged public, but access can change with seasons, claims, and local closures. Always verify before driving out, links in the app open the right BLM, USFS, or county pages.
Plan a Pennington County rockhounding trip
Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.
