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  • All fields: Gravity concentrators--Colorado--Breckenridge--1880-1900.
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    • Breckenridge Mill

    • Miners and mine employees stand near a concentration table in a mill near Breckenridge (Summit County), Colorado. An ore bucket hangs above the table.
    • Gravity concentrators--Colorado--Breckenridge--1880-1900.; Breckenridge (Colo.)--1880-1900.; Mills--Colorado--Breckenridge--1880-1900.; Miners--Colorado--Breckenridge--1880-1900.; Mining--Colorado--Breckenridge--1880-1900.
    • [between 1880 and 1900]

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