Explore the tunnels and shafts of the Adventure Mine and experience the miner's life as it truly was in the late 1800's. Several different underground tours are offered ranging from easy walks to several hour excursions that involve using a rope and rappelling harness to explore lower levels of the mine. A light jacket and good walking shoes are recommended. Open 9am - 6pm daily, 11am - 6pm Sunday, Eastern time, late May thru mid-Oct. Closed on Wednesdays after Labor Day. Tours offered until 5pm. Visit our gift shop. Located off Hwy M-38 in Greenland, MI. 39 miles south of Houghton, 13 miles east of Ontonagon.