
Silver mines and steep mountain tunnels define this high-altitude landscape within the Arapaho National Forest. The map centers on the Victorian-era mining hubs of Georgetown and Silver Plume, connected by the winding path of an Old Railroad Grade that clings to the narrow valley of Clear Creek. The density of industrial excavations is remarkable, ranging from the Pelican Mine and Terrible Mine to extensive underground works like the Seven-Thirty Tunnel and Burleigh Tunnel.
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7 editions found
1903 · Georgetown
USGS Topo · 1:62,500
1905 · Central City
USGS Topo · 1:62,500
1905 · Georgetown
USGS Topo · 1:62,500
1910 · Central City
USGS Topo · 1:62,500
1912 · Central City
USGS Topo · 1:62,500
1924 · Montezuma
USGS Topo · 1:62,500
1924 · Fraser
USGS Topo · 1:62,500
1926 · Fraser
USGS Topo · 1:62,500
1926 · Montezuma
USGS Topo · 1:62,500
1933 · Montezuma
USGS Topo · 1:62,500