The federal mineral record holds 1,042 entries for Indiana — 696 mines that shipped ore, 47 prospects that never became mines, 257 recorded occurrences. Below it: 1 place where you can legally collect.
Mineral history, not an invitation. This mineral history comes from a federal record of historic mines, prospects, and occurrences. It is not a list of places to collect. Historic mine sites are usually on private land, under active mining claims, or unsafe to enter — and often all three. The places you can actually collect are in the legal-access directory below.
The commodities that drew miners and prospectors to Indiana, by number of historic records:
Iron · 296Limestone · 65Clay · 47Sulfur · 20Fluorine-Fluorite · 18Zinc · 17Aluminum · 16Silica · 9
Records from the USGS Mineral Resources Data System, a legacy federal database last revised August 2022 and no longer updated.
Hours, fees, and access rules change. Verify with the operator or land agency before you go.
Bedford, IN
geodesquartz crystalscalcite
Forest Service collecting area · Free · Year-round. Creek gravel bars read best in late summer and fall when water is low. Recreational panning is allowed under the same no-earth-disturbance rule but is prohibited in the Charles C. Deam Wilderness, and dredges and sluices are not permitted anywhere.
Checked against its source August 16, 2026
Yes — at places that allow it. This page lists 1 in Indiana: fee digs, designated collecting areas, and official localities, each checked against its source. Everywhere else, legality depends on who owns the land and what rules apply. Before any trip: check land ownership and current mining claims, get permission, respect closures, and never enter old mine workings.
Treat Indiana's historic mines as history, not destinations. Most sit on private land or active mining claims, and old workings are dangerous even to walk. The mineral record on this page tells you what the ground holds — the directory tells you where you are welcome to look for it.