Old Mines — Rockhounding in Washington County, Missouri

Old Mines is a mapped rockhounding spot in Washington County, Missouri. Reported finds include barite, calcite, galena, goethite, malachite, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Washington County
State: Missouri
Nearest road: MO 21;MO 47
Postcode: 63630
Coordinates: 38.01515, -90.75614

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 Old Mines

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 Old Mines.

Across the state line from Old Mines

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

SpartaRandolph County, Illinois · 56 mi awayPyrite, Fossils

Old Mines FAQ

Where is Old Mines?+

Old Mines is in Washington County, Missouri, at 38.01515, -90.75614. Nearest road: MO 21;MO 47.

What rocks and minerals can you find at Old Mines?+

Old Mines is reported to produce Barite, Calcite, Galena, Goethite, Malachite, Marcasite, Pyrite, Chert, Quartz.

Is collecting allowed at Old Mines?+

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 Old Mines?+

Open the directions link to navigate to 38.01515, -90.75614 in Google Maps. The nearest road is MO 21;MO 47.

More rockhounding in Missouri

See all 94 Missouri spots →

Open Old Mines on the map

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