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  • All fields: Gilpin County (Colo.)--1870-1910.
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    • Blackhawk - Iron City Stamp Mill (Int.)

    • mortars and amalgamated with the gold in the ore. The stamps were periodically stopped and the amalgam was retrieved and then sold to banks or the mint.; The interior of a stamp mill, possibly the Iron City Stamp Mill in Blackhawk, Colorado, shows...
    • Ore-dressing plants--Colorado--Blackhawk--1870-1910.; Ore-dressing--Colorado--Blackhawk--1870-1910.; Blackhawk (Colo.)--1870-1910.; Gilpin County (Colo.)--1870-1910.; Gold mining--Colorado--Blackhawk--1870-1910.
    • [between 1935 and 1950?]
    • Blackhawk - Iron City Stamp Mill

    • Several unidentified men stand outside the Iron City Stamp Mill in Blackhawk, a mining town in Gilpin County, Colorado. The tracks of the Gilpin Tramway, which was used to haul ore from nearby mines to the depot in Blackhawk, cross the foreground....
    • Mine railroads--Cars--Colorado--Blackhawk--1870-1910.; Ore-dressing plants--Colorado--Blackhawk--1870-1910.; Ores--Transportation--Colorado--Blackhawk--1870-1910.; Blackhawk (Colo.)--1870-1910.; Gilpin County (Colo.)--1870-1910.; Carriages &...
    • [between 1935 and 1950?]
    • Railroads. Gilpin Tramway. Cars.

    • Several cars of the Gilpin Tramway are on the narrow gauge railroad track in the foreground of this view near Quartz Hill above Central City, Colorado. The Gilpin Tramway was used to haul ores from the mines in the Central City area down the hill...
    • Mine buildings--Colorado--Central City--1870-1910.; Mine railroads--Cars--Colorado--Central City--1870-1910.; Central City (Colo.)--1870-1910.; Gilpin County (Colo.)--1870-1910.; Mining--Colorado--Central City--1870-1910.
    • [between 1935 and 1950?]

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