Report issued by the U.S. Bureau of Mines on the oil-shale reserves near the Green River formation. Samples are analyzed for economic value, and presented in tables and illustrations. The report also includes maps of the sample areas.

From Summary and Conclusions: "The objective of this investigation has been stated above in the Introduction. Studies were made of mining operations in the Athens Basin, Rafina and Oropos districts; the Kimi and Aliveri areas on the island of Euboea; and the Peloponnese in the vicinity of Kalamai. (See fig. 2). Mining practices at mines in these areas are summarized briefly in this report. Samples of lignite were shipped to Bureau of Mines experiment stations at Pittsburgh, Pa., and Golden, Colo., for washability and utilization studies."

Report documenting the suitability of Colorado for plant locations to produce synthetic liquid fuels, based on raw materials such as coal, oil shale, natural gas, and oil-impregnated strippable deposits.

Volume of supplementary data, illustrations, and other information related to a study of the suitability of areas in Colorado for developing coal, natural gas, oil shale, and other deposits into synthetic liquid fuels.