The objective of this study was the compilation and assessment of existing data on mining resources and potential problems associated with mining of Cenozoic rocks in the Williston and Powder River Basins in the Northern Great Plains. The report presents an interpretation of the three-dimensional stratigraphic framework and depositional setting of the Cenozoic sedimentary section, and the construction of a data base accessible to scientists and other users. The bibliography consists of about 800 references on sedimentology, stratigraphy, coal and uranium reserves, coal chemistry, ground water and rock geochemistry, and rock mineralogy. The references are cross-indexed by subject matter and geographic location. The computer data base contains data from 8,508 locations and has about 12,500 entries in the various individual data sets.