Union's oil shale development site.

Union's oil shale development site. Main mine bench center of photograph. Garfield County, Colorado. August 27, 1981. Courtesy U.S. Geological Survey. The USGS home page is http://www.usgs.gov.

This photograph is by carnkie and was uploaded December 16^th 2009. © carnkie please do not copy or distribute without prior express permission.

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