Rockhounding in Greene County, Ohio

1 mapped rockhounding spot in Greene County. Most commonly produces brachiopods, bryozoans, corals, crinoids.

Greene County rockhounding photos

Representative spot and material photos from this county, shown where verified public image records are available.

1 photo

The exposed Silurian reef floor and a quarry pond at Oakes Quarry Park, Fairborn, Greene County, Ohio — Oakes Quarry ParkGreene County, Ohio

Minerals reported in Greene County

Brachiopods1
Bryozoans1
Corals1
Crinoids1
Fossils1

Standout in Greene County

Hand-picked spot in Greene County, chosen for unusual mineralogy or documented public access. Each card opens the full coordinates and access notes.

Top pick
Oakes Quarry Park
Public
Greene County
Oakes Quarry Park exposes the Silurian Brassfield Formation, roughly 440 million years old, and preserves two ancient patch reefs that have yielded 29 species of crinoids, some among the largest ever described. The City of Fairborn manages the old limestone quarry specifically for public fossil collecting, an unusual designation for a municipal park. Brachiopods, bryozoans, mollusks, corals, and occasional trilobites weather out of the reef rock across the site.
Fossils, Crinoids, Brachiopods, Corals

Spots in Greene County

Spot	Minerals	Coordinates	Access
Oakes Quarry ParkEast Xenia Drive	Fossils Crinoids Brachiopods Corals Bryozoans	39.7901, -83.9821	Public

Neighboring counties in Ohio

Adjacent rockhounding counties, ranked by how close their centroids sit to Greene County. A natural extension if Greene County is already on your trip plan.

Across the state line from Greene 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 Ohio.

Dearborn County~69 miIndiana · 1 spotTop: Trilobites

Greene County FAQ

Where can I rockhound in Greene County, Ohio?+

RockHoundR tracks 1 rockhounding spot in Greene County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.

What rocks and minerals are common in Greene County?+

Spots in Greene County most often produce Brachiopods, Bryozoans, Corals, Crinoids, Fossils. Individual spots can vary widely.

Are these Greene 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 Greene County rockhounding trip

Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.