41. Rebuilding Mount St. Helens Author/Creator: Geological Survey (U.S.) Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2006 Resource Type: Map Access & Availability: Loading
42. Reconnaissance geochemistry in the southern part of the Virgilina district, North Carolina and Virginia Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
43. Reconnaissance geologic map of Elkhorn Peak quadrangle, Bannock and Oneida counties, Idaho Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
44. Reconnaissance geologic map of parts of the Twin Peaks and Blanca Peak quadrangles, Alamosa, Costilla, and Huerfano counties, Colorado Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
45. Reconnaissance geologic map of parts of the Zapata Ranch and Mosca Pass quadrangles, Alamosa and Huerfano counties, Colorado Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
46. Reconnaissance geologic map of the Cucharas Pass quadrangle, Huerfano and Las Animas counties, Colorado Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Information Services Resource Type: Map Access & Availability: Loading
47. Reconnaissance geologic map of the Sliderock Mountain area, Sweet Grass and Stillwater counties, Montana Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
48. Reconnaissance geologic map of the southern Sierra Nevada, Kern, Tulare, and Inyo counties, California Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : U.S. Geological Survey Information Services [distributor] Resource Type: Map Access & Availability: Loading
49. Reconnaissance geologic map of the west half of the Bend and the east half of the Shevlin Park 7 1/2ʹ quadrangles, Deschutes County, Oregon Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
50. Reconnaissance geologic map of the west half of the Crescent 1⁰ by 2⁰ quadrangle, central Oregon Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading