The federal mineral record holds 10,273 entries for Montana — 3,974 mines that shipped ore, 1,674 prospects that never became mines, 3,041 recorded occurrences. Below it: 6 places 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 Montana, by number of historic records:
Gold · 4,837Silver · 4,336Lead · 2,793Copper · 2,637Zinc · 1,601Manganese · 467Tungsten · 418Uranium · 418
Records from the USGS Mineral Resources Data System, a legacy federal database last revised August 2022 and no longer updated.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.
Miles City, MT
montana moss agateagatejasper
Public land, rules apply · Free · Practically June through October in the eastern badlands. Two-track roads on bentonite clay turn impassable after rain and stay that way for a day or more.
Checked against its source August 16, 2026
Wise River, MT
quartz crystalssmoky quartzamethyst
Forest Service collecting area · Fee, seasonal · Day use only, mid-June through mid-October depending on snowpack. IMPORTANT: the Forest Service page currently lists the area as CLOSED due to the Sand Creek and Bobcat Lakes fires. Confirm with the Beaverhead-Deerlodge National Forest before you drive up.
Checked against its source August 16, 2026
Philipsburg, MT
sapphiregarnet
Fee dig · Fee · Mine site open May 20 to September 5, 2026, Wednesday through Saturday, opening at 9:30 a.m. The Philipsburg gallery downtown stays open seven days a week year-round.
Checked against its source August 16, 2026
Alder, MT
garnet
Public land, rules apply · Free · Site is open year-round, but collecting is best in late summer and fall when the reservoir is drawn down and the garnet bands sit exposed. Water levels fluctuate a lot because the reservoir is used for irrigation. Access roads turn to gumbo when wet.
Checked against its source August 16, 2026
Spokane Bar Sapphire Mine & Gold Fever Rock Shop
Helena, MT
sapphiregarnetquartz
Fee dig · Fee · Open year-round, Thursday through Sunday 9 a.m. to 5 p.m., closed Monday. The operator warns April can be iffy with frozen ground and recommends after the Fourth of July through September.
Checked against its source August 16, 2026
Philipsburg, MT
sapphire
Fee dig · Fee · Open year-round, Sunday through Friday 10 a.m. to 5 p.m. Note it is CLOSED Saturdays - the one day travelers most often plan around. The reliable rainy-day and shoulder-season option when the mine roads are shut.
Checked against its source August 16, 2026
GoldSilverCopperQuartz CrystalsAgatesJasperGarnetsFluoriteBerylSapphires & RubiesPetrified WoodGemstones
Yes — at places that allow it. This page lists 6 in Montana: 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 Montana'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.