Silver bricks.
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Black Hawk.
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Black Hawk.
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From Black Hawk to Central.
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Black Hawk from C. C. R. R. [Central Colorado Railroad]. August 31st, 1881.
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Switch Black Hawk.
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Black Hawk.
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Iron bridge over Black Hawk.
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The smelter, at Black Hawk, Colo.
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The Bobtail mill, at Black Hawk, Colo.
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Black Hawk, Colorado.
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In the "Bobtail" mine, Black Hawk canyon, Colorado, U.S.A.
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Black Hawk. This place is noted for its quartz mills, distance 40 miles from Denver, elevation 8200 ft.
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Black Hawk mining town near Central City.
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Black Hawk City, Colorado.
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