Submit a community underground mine

Help expand UndergroundMines.com with locations that have credible evidence of actual underground workings — not claims, prospects, or map labels alone.

Location protection

Your exact coordinates are never shown to public visitors or free members.

Public and free-member maps use a deliberately displaced approximate point around 10 miles away from the real location.

If you choose to share the exact location, only active Explorer Pro members can receive it.

We use this system to reduce casual exposure of historic mine locations and help protect sites from unnecessary damage and overuse.

Your public trip reports still follow our separate location-safe sharing rules and never include stored mine coordinates.

Please sign in or create an account to submit a mine.