Cliffs Shaft Mine Museum Mining at this website continued till 1967, marking the end of underground iron mining in the area. The Iron Cliffs Company was established in 1865 by a group of New Yorkers together with Samuel J. Tilden. They obtained property in Marquette County and opened their https://augustyunfx.wizzardsblog.com/5921602/how-to-reduce-your-exposure-to-diesel-exhaust-pollution-and-protect-your-health