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Lawrence County: Flint Nodules Rockhounding in Lawrence County, Ohio

Updated July 2026

At Ohio's southern tip the Ohio River rolls up gravel bars carrying flint nodules, chert, jasper, and quartz eroded and reworked from the Appalachian bedrock upstream. The river is navigable and public, so surface picking on the bars at public access points is open to anyone, and the constantly shifting gravel refreshes the pickings after every high-water event. It is one of the more reliable free flint hunts in far southern Ohio. Reported finds include flint nodules. Below: coordinates, access notes, nearby spots, and trip-planning links.

Lawrence County photos

Public image records connected to this spot or its reported material.

1 photo

Aerial view of the Ohio River at Ironton, Lawrence County, Ohio, whose gravel bars yield flint, chert, and jasper

Quick details

Access: Public area
County: Lawrence County
State: Ohio
Nearest road: Main Loop
Coordinates: 38.61498, -82.53761

Geology at Lawrence County

This spot sits on Allegheny and Pottsville Groups, Undivided, mapped as shale and siltstone that formed roughly 325 to 300 million years ago. Sedimentary rock like this erodes unevenly, so the most productive collecting is typically along fresh cuts, badland slopes, and active drainages.

Mapped unit: Allegheny and Pottsville Groups, Undivided
Age: 325–300 Ma (Pennsylvanian)
Rock types: shale and siltstone
Elevation: 680 ft

Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.

Best time to visit Lawrence County

Best months: February to December. Typical highs run 86°F in midsummer and 41°F in midwinter, with winter lows near 20°F.

Climate normals: NOAA 1991-2020 monthlies, WATERLOO station (7 mi away).

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 Lawrence County

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

Flint Nodules Encyclopedia →

Nearby rockhounding spots

Other rockhounding spots within driving distance of Lawrence County.

Across the state line from Lawrence County

Lawrence County is close enough to the Ohio border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Lawrence County FAQ

Where is Lawrence County?+

Lawrence County is in Lawrence County, Ohio, at 38.61498, -82.53761. Nearest road: Main Loop.

What rocks and minerals can you find at Lawrence County?+

Lawrence County is reported to produce Flint Nodules.

Is collecting allowed at Lawrence County?+

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.

What tools should I bring to Lawrence County?+

A rock hammer, sturdy gloves, safety glasses, and a collecting bag cover the basics here. Add a spray bottle: wet rock shows color and pattern that dry rock hides.

When is the best time to visit Lawrence County?+

The most comfortable months at Lawrence County are February to December.

How do I get to Lawrence County?+

Open the directions link to navigate to 38.61498, -82.53761 in Google Maps. The nearest road is Main Loop.

More rockhounding in Ohio

See all 38 Ohio spots →

Open Lawrence County on the map

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