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A résumé of the coal resources in an area of 1,100 square miles in south-central Colorado.
A study of coal resources and their geologic occurrence in formations of Late Cretaceous and Paleocene age.
Prepared on behalf of the U.S. Atomic Energy Commission.
A summary and analysis of information concerning the quantity and distribution of coal in the United States. Supersedes Bulletin 1136.
A compendium of about 1,300 geological reports, maps, and statistical summaries.
General geology near the North Entrance of Yellowstone National Park, with special emphasis on recurrent faulting along the boundary of the Beartooth uplift.