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 |
Other rockhounding counties in Missouri
- Crawford County7 spotsTop: Pyrite, Hematite, Malachite
- Iron County5 spotsTop: Hematite, Actinolite, Chalcopyrite
- Clark County4 spotsTop: Geodes, Calcite, Barite
- Saint Louis County4 spotsTop: Calcite, Quartz, Barite
- Washington County4 spotsTop: Calcite, Galena, Goethite
- Boone County3 spotsTop: Gypsum, Marcasite, Pyrite
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.
