Michigan's Copper Industry began thousands of years ago when ancient miners chipped away at exposed veins of pure copper with huge hammerstones. Tools and techniques of mining advanced considerably in the centuries that followed and Coppertown's Mining Museum traces the evolution of miners and mining people with a series of tasteful exhibits designed for the family. Other remnants abound. The site of the first mineral rush in the USA, the Keweenaw Peninsula, saw it's last copper mine close in 1968.