Map of the mining-districts surrounding the townsite of Idaho-Springs, situate in Clear Creek County, Colorado / Theo. H. Lowe, C.E. ; Rollandet & Van Diest, draughtsmen, Denver, Colo.Lowe, Theo. H1881?]Ill.: Idaho in 1881 -- Idaho in 1866 -- Residence of Col. Wm. Moore -- Idaho Tunnel -- Freeland Mine -- Colorado Central R.R. Depot -- Tropic Mine -- Bath house and proposed hotel -- Hukill Mine -- Foxhall Tunnel -- Rock-Eyrie.Includes "Cross section of the Summit Tunnel."Shows mining claims, tunnels, bodies of water, railroads, roads,towns, range and township.cartographic