Washington DC: United States Government Printing Office, 1961. First edition. Paperback. 835-891pp. Octavo [23 cm] Gray and black printed wraps. Very good The spine is sunned, and the corners of the covers and pages are a bit bumped. Minor notation on the title page. Complete, with 7 plates in the rear pocket. Item #40732
From the text- "The greatest known potential oil resource in the world occurs in the oil shale of the Green River formation, and the richest and thickest deposits occur within the area of this report. The purpose of this investigation was to obtain data on the stratigraphic distribution and areal extent of the oil-shale beds and to estimate the potential oil resources in the area."