A huge red-and-white gold mill built at the portal of the Argo Tunnel, once designed to drain and serve mines across the district. Tours interpret ore processing, hard-rock mining and the catastrophic tunnel history that shaped Idaho Springs.
Filed under weird history: real events too strange to have made the textbook.
Something wrong with this entry?
Source: historicidahosprings.com/historic-sites/argo-mill-and-tunnel/