31. Geologic map showing thickness of sedimentary rocks from ground surface to the top of the upper Cretaceous Pierre Shale in the north half of the Powder River Basin, southeastern Montana and northeastern Wyoming Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
32. Geologic map of the Dun Glen quadrangle, Pershing County, Nevada Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
33. Quaternary geologic map of the Platte River 4° x 6° quadrangle, United States Author/Creator: Geological Survey (U.S.) Publication/Creation: Reston, VA : The Survey ; Denver, CO : For sale by Map Distribution, 1994 Resource Type: Map Access & Availability: Loading
34. Isopleth maps of titanium, aluminum, and associated elements in stream sediments of West Virginia Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by U.S. Geological Survey Map Distribution Resource Type: Map Access & Availability: Loading
35. Isopleth maps of uranium, thorium, cerium, lanthanum, and related elements in stream sediments of West Virginia Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by U.S. Geological Survey Map Distribution Resource Type: Map Access & Availability: Loading
36. Bedrock and engineering geologic maps of New York County and parts of Kings and Queens counties, New York, and parts of Bergen and Hudson counties, New Jersey Author/Creator: Geological Survey (U.S.) Publication/Creation: Reston, VA : U.S. Dept. of the Interior, U.S. Geological Survey, 1994 Resource Type: Map Access & Availability: Loading
37. Map showing distribution, composition, and age of early and middle Cenozoic volcanic centers in Idaho, Montana, west-central South Dakota, and Wyoming Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
38. Geologic map of the Motoqua and Gunlock quadrangles, Washington County, Utah Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
39. Quaternary geologic map of the Lake Nipigon 4° x 6° quadrangle, United States and Canada Author/Creator: Geological Survey (U.S.) Publication/Creation: Reston, VA : The Survey ; Denver, CO : For sale by Map Distribution, 1994 Resource Type: Map Access & Availability: Loading
40. Geologic map of the Evanston 30ʹ x 60ʹ quadrangle, Uinta and Sweetwater counties, Wyoming Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading