View of the Index Shale Oil Company retort near De Beque (Mesa County), Colorado; cliffs of Mount Blaine (Mount Index) are behind sheds, pipes, and tanks.
Index Shale Oil Company--Buildings--1920-1930.; Oil-shale industry--Colorado--Mesa County--1920-1930.; Blaine, Mount (Garfield County, Colo.)--1920-1930.; Mesa County (Colo.)--1920-1930.; Industrial facilities--Colorado--Mesa County--1920-1930.;...
[between 1920 and 1930?]
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