Upper Cretaceous Gammon, Shannon, and Sussex sandstones, central Powder River Basin, Wyoming / George C. Crews, James A. Barlow Jr. and John D. Haun -- Late Cretaceous Teapot delta of southern Powder River Basin, Wyoming / William H. Curry III -- Type section of the Teapot sandstone / William H. Curry III -- The Upper Cretaceous Frontier Formation in the Kaycee-Tisdale Mountain area, Johnson County, Wyoming / E.A. Merewether, W.A. Cobban and C.W. Spencer -- Madison limestone (Devonian and Mississippian) east flank of Bighorn Mountains, Wyoming / William J. Sando -- Relationships between early Tertiary sedimentation patterns and uranium mineralization in the Powder River Basin, Wyoming / David A. Seeland -- Upper Cretaceous Shannon sandstone : an offshore, shallow-marine sand body / Darwin R. Spearing -- Pollen changes near the Fort Union-Wasatch boundary, Powder River Basin / Robert H. Tschudy -- Regional distribution of environments of the Muddy sandstone, southeastern Montana / Juliana Waring -- Geologic map of Paleozoic and Mesozoic rocks, east flank of the Bighorn Mountains from lat. 44À 37' 30" N. to lat. 44À 52' 30" N., Sheridan County, Wyoming / R.L. Langenheim Jr., M.L. Reinbold and J.S. Tissue -- Sussex sandstone production, Triangle U field, Campbell County, Wyoming / George G. Anderman -- Deadman Creek field / Eric Arro -- Kiehl field / Eric Arro -- An environmental interpretation of the Upper Cretaceous Shannon sandstone, Heldt Draw field, Wyoming / M.J. Todd Davis -- Powell-Ross field, Converse County, Wyoming / Ronald E. Hando -- Fall River ("Dakota") oil entrapment, Powder River Basin / Sherod A. Harris -- Petroleum geology of the Well Draw field, Converse County, Wyoming / E. Burke Isbell, Charles W. Spencer and Tommie Seitz -- Spearhead Ranch field / Alan U. Lange -- Trabing field / Alan U. Lange -- Steinle Ranch field / Steven G. Reid -- Trapping mechanisms for oil in Lower Cretaceous Muddy sandstone at Recluse field, Wyoming / Robert R. Berg -- Statistical summaries of Muddy and Minnelusa reservoirs in the Powder River Basin, Wyoming / Donald Basko and E.E. Mulholland -- Coal in the Wasatch Formation, northwest part of the Powder River Basin near Sheridan, Sheridan County, Wyoming / W.C. Culbertson and W.J. Mapel -- Hydrologic factors related to coal development in the eastern Powder River Basin / Richard W. Davis -- Update on the Powder River coal basin / Gary B. Glass -- Large-scale compaction structures in the coal-bearing Fort Union and Wasatch formations, northeast Powder River Basin, Wyoming / B.E. Law -- The Bear Creek uranium project / F.J. Buturla and M.E. Schwenk -- Evaluation of uranium resources in the Powder River Basin, Wyoming / Donald L. Curry -- Genesis and characteristics of the southern Powder River Basin uranium deposits, Wyoming / A.R. Dahl and J.L. Hagmaier -- Bentonite mining near Kaycee, Wyoming / Thomas Thorson -- Bentonite in the Powder River Basin / Claudia A. Wolfbauer -- Exploration for ground water in the Madison limestone, Niobrara County, Wyoming / Keith E. Anderson and Jack E. Kelly -- Permeability and ground water circulation in the Madison aquifer along the eastern flank of the Bighorn Mountains of Wyoming / Peter W. Huntoon -- Geochemical discrimination of sandstones of the basal Wasatch and uppermost Fort Union formations, Powder River Basin, Wyoming and Montana / Jon J. Connor, Norman M. Denson and John C. Hamilton -- Regional geochemical baselines in soils of the Powder River Basin, Montana-Wyoming / Ronald R. Tidball and Richard J. Ebens -- Field trip road log: Upper Cretaceous sandstones Casper-Salt Creek-Tisdale Mountain / W.H. Curry III and George C. Crews -- Field trip road log: geology and uranium operations southern Powder River Basin / W.C. Duke and J.C. McGee.