Quincy Mine – along with C&H to the north and Copper Range to the South – were the three biggest mines on the copper range. Their influence was strong and far reaching, lasting for almost two centuries. All three built expansive surface plants, ports, smelters, stamp mills, roads, and a network of railroads to rival any industrial area of the United States. When it comes to railroads, Quincy’s contribution was a short line that ran from its Stamp Mill on Torch Lake to the crest of Quincy Hill overlooking the Portage and the port cities. The Quincy and Torch Lake Railroad.