Rockhounding in Saint Charles County, Missouri
4 mapped rockhounding spots in Saint Charles County. Most commonly produces fluorite, fossils, yellow calcite, calcite.
Map showing 4 rockhounding spots in Saint Charles County, Missouri
Spots in Saint Charles County
| Spot | Minerals | Coordinates | Access |
|---|---|---|---|
| Chesterfield | 38.6871, -90.6178 | Public | |
| Defiance QuarryMO DD |
| 38.6608, -90.7760 | Public |
| Saint Charles QuarryArena Parkway | 38.7504, -90.5095 | Public | |
| Weber QuarryI 70 | 38.8043, -90.7429 | Public |
Neighboring counties in Missouri
Adjacent rockhounding counties, ranked by how close their centroids sit to Saint Charles County. A natural extension if Saint Charles County is already on your trip plan.
- Saint Louis County~16 mi4 spotsTop: Calcite, Quartz, Barite
- Jefferson County~31 mi3 spotsTop: Sphalerite, Calcite, Calcite Nodules
- Washington County~52 mi4 spotsTop: Calcite, Galena, Goethite
- Crawford County~56 mi7 spotsTop: Pyrite, Hematite, Malachite
- Ralls County~73 mi3 spotsTop: Pyrite, Marcasite, Silicified Conodonts
- Iron County~77 mi5 spotsTop: Hematite, Actinolite, Chalcopyrite
Saint Charles County FAQ
Where can I rockhound in Saint Charles County, Missouri?+
RockHoundR tracks 4 rockhounding spots in Saint Charles County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.
What rocks and minerals are common in Saint Charles County?+
Spots in Saint Charles County most often produce Fluorite, Fossils, Yellow Calcite, Calcite, Chert Nodules. Individual spots can vary widely.
Are these Saint Charles 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 Saint Charles County rockhounding trip
Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.
