View of a Denver and Rio Grande Western Railroad construction train, Douglas County, Colorado; shows men posing with a flatbed-mounted scoop shovel ditching machine.
Denver and Rio Grande Western Railroad Company.--1920-1930.; Douglas County (Colo.)--1920-1930.; Machinery--Colorado--Douglas County--1920-1930.; Railroad construction & maintenance--Colorado--Douglas County--1920-1930.; Railroad construction...
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