The Colony Plant (Near Grand Valley in the Piceance Basin) after Years of Research, Has Taken Oil Shale from an Underground Mine and Has Successfully Processed It in an Experimental Retort Ten Per Cent of Colony's Twenty-Four Million Dollar Research Progr
The Colony Plant (Near Grand Valley in the Piceance Basin) after Years of Research, Has Taken Oil Shale from an Underground Mine and Has Successfully Processed It in an Experimental Retort Ten Per Cent of Colony's Twenty-Four Million Dollar Research Progr
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Photo credit: © PF-(usna) / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: .., agency, archives, documerica, environmental, environmentalprotectionagency, historic, history, nara:arcid=552687, national, protection, usa, usnationalarchives
