41. Map showing outcrops of pre-quaternary basaltic rocks, basin and range province, New Mexico Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver, Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Format: Map Access & Availability: Loading
42. Map showing outcrops of tertiary basaltic rocks, basin and range province, northern California Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver, Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Format: Map Access & Availability: Loading
43. Map showing outcrops of thick, dominantly argillaceous sedimentary and metasedimentary rocks, basin and range province, Arizona Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver, Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Format: Map Access & Availability: Loading
44. Map showing outcrops of thick, dominantly argillaceous sedimentary and metasedimentary rocks, basin and range province, Idaho Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver, Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Format: Map Access & Availability: Loading
45. Map showing outcrops of thick, dominantly argillaceous sedimentary and metasedimentary rocks, basin and range province, Southern California Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver, Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Format: Map Access & Availability: Loading
46. Map showing outcrops of thick, dominantly argillaceous sedimentary and metasedimentary rocks, basin and range province, Utah Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Denver, Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey Format: Map Access & Availability: Loading
47. Map showing the distribution and abundance of nickel and chromium in bedrock samples, western Chichagof and Yakobi Islands Wilderness Study Area, southeastern Alaska Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : Department of the Interior, United States Geological Survey, 1984 Format: Map Access & Availability: Loading
48. Map showing the distribution and abundance of zinc in bedrock samples, western Chichagof and Yakobi Islands Wilderness Study Area, southeastern Alaska Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : Department of the Interior, United States Geological Survey, 1984 Format: Map Access & Availability: Loading
49. Maps showing altitude of the potentiometric surface and changes in water level of the Sparta sand and Memphis sand aquifers in Eastern Arkansas, spring 1983 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Little Rock, Arkansas] : U.S. Department of the Interior, U.S. Geological Survey 1984 Format: Map Access & Availability: Loading
50. Maps showing altitude of the potentiometric surface and changes in water levels of the alluvial aquifer in eastern Arkansas, Spring 1983 Author/Creator: Edds, Joe, 1924- cartographer Publication/Creation: [Litte Rock, Arkansas] : U.S. Department of the Interior, U.S. Geological Survey, [1984] Format: Map Access & Availability: Loading