Mineral Resource Data System
A fast mirror of the U.S. Geological Survey's MRDS detail pages — more than 300,000 mines, prospects, and mineral occurrences across the United States.
Try an example: Jackass Gulch (California) · Flagstaff Mining Co. (Alaska)
Find a mine near you
Browse and search a map of U.S. mines with the free Mine Locator Map app.
Mines outside the U.S.
The U.S. records live here; explore roughly 38,000 international sites in the MRDS Explorer.
Data from the USGS Mineral Resource Data System. This mirror is independent and not affiliated with or endorsed by the USGS.