Rockhounding in Jefferson County, Illinois
1 mapped rockhounding spot in Jefferson County. Most commonly produces diamond.
Map showing 1 rockhounding spot in Jefferson County, Illinois
Minerals reported in Jefferson County
Spots in Jefferson County
| Spot | Minerals | Coordinates | Access |
|---|---|---|---|
| Mt. Vernon AreaIL 15 | 38.3073, -89.1386 | Public |
Neighboring counties in Illinois
Adjacent rockhounding counties, ranked by how close their centroids sit to Jefferson County. A natural extension if Jefferson County is already on your trip plan.
Across the state line from Jefferson 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 Illinois.
- Jefferson County~70 miMissouri · 3 spotsTop: Sphalerite, Calcite, Calcite Nodules
- Saint Louis County~71 miMissouri · 4 spotsTop: Calcite, Quartz, Barite
- Madison County~86 miMissouri · 3 spotsTop: Actinolite, Aragonite, Azurite
- Saint Charles County~87 miMissouri · 4 spotsTop: Fluorite, Fossils, Yellow Calcite
Jefferson County FAQ
Where can I rockhound in Jefferson County, Illinois?+
RockHoundR tracks 1 rockhounding spot in Jefferson County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.
What rocks and minerals are common in Jefferson County?+
Spots in Jefferson County most often produce Diamond. Individual spots can vary widely.
Are these Jefferson 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 Jefferson County rockhounding trip
Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.
