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THE COLONY PLANT NEAR GRAND VALLEY IN THE PICEANCE BASIN AFTER YEARS OF RESEARCH HAS TAKEN OIL SHALE FROM AN... NARA .tif Scope and content General notes Local identifier DA Environmental Protection Agency NARAAuthor Hiser David Photographer File THECOLONYPLANT NEARGRANDVALLEYINTHEPICEANCEBASIN AFTERYEARSOFRESEARCH HASTAKENOILSHALEFROMAN