Adventure Mining Company invites guests to explore one of Michigan’s best-preserved historic copper mines in Greenland, in the heart of the Upper Peninsula. Operating from 1850 to 1920, the mine produced more than 11 million pound... more
Explore submerged mine workings and 100-year-old artifacts
Rappel 80 feet underground to explore historic mine passages
Explore historic copper mine passages on a family-friendly underground hike