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    • Black Hawk, Colo.

    • Blackhawk lies at the mouth of Chase Gulch near Central City in Gilpin County, Colorado. A railroad track forks in the foreground with one portion leading to the Polar Star Mill at right. The Empire Mill stands in the midground, and the Boiler Room...
    • Blackhawk (Colo.)--1900-1910.; Mining--Colorado--Gilpin County--1900-1910.
    • [between 1900 and 1910?]

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