View of a frame mine building used in oil shale processing in or near De Beque (Mesa County), Colorado. Shows a tailings pile, an oil-stained ravine, a smokestack, and flumes or chutes on a steep slope.
View of the Monarch Shale Oil Company mine on a mesa in De Beque (Mesa County), Colorado. Shows the mine entrance and crusher site near layered shale at the top of the formation, a shale conveyor, a crushed shale bin, a retort, a stairway, storage...
Men wear suits, ties, overcoats, and felt hats and stand beside trees outside the Index Oil Shale Company plant in De Beque (Mesa County), Colorado. Shows metal and frame buildings and tall smokestacks. A flag above a building reads "Index." Metal...
Index Oil Shale Company--1920-1930.; Oil-shale industry--Colorado--De Beque--1920-1930.; De Beque (Colo.)--1920-1930.; Mining--Colorado--De Beque--1920-1930.; Refineries--Colorado--De Beque--1920-1930.
[between 1920 and 1930?]
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