Coal Hollow — Rockhounding in Martin County, Indiana

Coal Hollow is a mapped rockhounding spot in Martin County, Indiana. Reported finds include siderite. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Martin County
State: Indiana
Coordinates: 38.62564, -86.76539

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 Coal Hollow

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

Siderite Encyclopedia →

Nearby rockhounding spots

Other rockhounding spots within driving distance of Coal Hollow.

Across the state line from Coal Hollow

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

Coal Hollow FAQ

Where is Coal Hollow?+

Coal Hollow is in Martin County, Indiana, at 38.62564, -86.76539.

What rocks and minerals can you find at Coal Hollow?+

Coal Hollow is reported to produce Siderite.

Is collecting allowed at Coal Hollow?+

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 Coal Hollow?+

Open the directions link to navigate to 38.62564, -86.76539 in Google Maps. Some spots are remote — check road conditions before driving out.

More rockhounding in Indiana

See all 32 Indiana spots →

Open Coal Hollow on the map

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