REFINE     Who What Where When     REMOVE Graphs WHAT Coal mines and mining (4) Still image (4) image/tiff (4) Industrial productivity (3) WHEN [1970s] (4)

REFINE  Browse All : Graphs 1-4 of 4 Man pointing to a map [1970s]   Title Man pointing to a map Date [1970s] Coal mining, Fremont Co... [1970s]   Title Coal mining, Fremont County, Colorado, 1930-1976 Date [1970s] Coal mining, Fremont Co... [1970s]   Title Coal mining, Fremont County, Colorado, 1885-1930 Date [1970s] Colorado coal mining: P... [1970s]   Title Colorado coal mining: Production and employment, 1930-1975 Date [1970s] 1-4 of 4

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