Construction workers pose for a group portrait inside the Moffat Tunnel beside a sign that reads: "Refuge No.12" in Gilpin County or Grand County, Colorado. The men hold lanterns and wear tall work boots, overalls, overcoats, gloves, hats or caps...
Railroad tunnels--Colorado--1920-1930.; Moffat Tunnel (Colo.)--1920-1930.; Interiors--Colorado--1920-1930.; Railroad construction workers--Colorado--1920-1930.; Tunnels--Colorado--1920-1930.
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