REFINE     Who What Where When     REMOVE [1923-06] WHAT Coal (1) Still image (1) Underground mining (1) image/tiff (1) WHERE Colorado (United States, … (1) WHEN 1920s (1)

REFINE  Browse All : Images from [1923-06] 1-1 of 1 Chute for transporting ... Colorado (United States... [1923-06]   Title Chute for transporting coal Coverage (Spatial) Colorado (United States, North America) (first order administrative divisions) Date [1923-06] 1-1 of 1

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