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  • All fields: Tunnels--Colorado--Douglas County--1920-1930.
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    • Denver water pipeline

    • Denver water pipeline

    • A man and woman walk along the top of a large pipe, part of the Denver municipal water system in Platte Canyon, Douglas County, Colorado. The pipe is supported by a wooden framework and extends into a tunnel in the side of a rock face. Shows the...

    • Douglas County (Colo.)--1920-1930.; Highline Canal (Douglas County-Denver County, Colo.)--1920-1930.; Platte Canyon (Colo.)--1920-1930.; South Platte River (Colo. and Neb.)--1920-1930.; Aqueducts--Colorado--Douglas County--1920-1930.; Irrigation...

    • [1929 January, February]

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