Cave-In Rock — Rockhounding in Hardin County, Illinois

Cave-In Rock is a mapped rockhounding spot in Hardin County, Illinois. Reported finds include barite, calcite, cerussite, chalcopyrite, fluorite, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Hardin County
State: Illinois
Nearest road: Hastie Mine Road
Postcode: 62919
Coordinates: 37.50321, -88.20518

Land & collecting status

Generally open to casual rockhounding

Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.

Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.

Sources & verification

Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.

Sources: RockHoundR public spot dataset, app land overlays, and local agency review before each trip.

Found at Cave-In Rock

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Nearby rockhounding spots

Other rockhounding spots within driving distance of Cave-In Rock.

Across the state line from Cave-In Rock

Cave-In Rock is close enough to the Illinois border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Cave-In Rock FAQ

Where is Cave-In Rock?+

Cave-In Rock is in Hardin County, Illinois, at 37.50321, -88.20518. Nearest road: Hastie Mine Road.

What rocks and minerals can you find at Cave-In Rock?+

Cave-In Rock is reported to produce Barite, Calcite, Cerussite, Chalcopyrite, Fluorite, Galena, Pyrite, Smithsonite, Witherite.

Is collecting allowed at Cave-In Rock?+

Generally open to casual rockhounding. Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig. Always confirm current rules with the managing agency before a trip.

How do I get to Cave-In Rock?+

Open the directions link to navigate to 37.50321, -88.20518 in Google Maps. The nearest road is Hastie Mine Road.

More rockhounding in Illinois

See all 29 Illinois spots →

Open Cave-In Rock on the map

Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.