41. Map showing outcrops of pre-Quaternary ash-flow tuffs and volcaniclastic rocks, basin and range province, Arizona Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : Department of the Interior, United States Geological Survey, 1984 Resource Type: Map Access & Availability: Loading
42. Map showing outcrops of pre-quaternary ash-flow tuffs and volcaniclastic 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 Resource Type: Map Access & Availability: Loading
43. Map showing outcrops of pre-quaternary ash-flow tuffs, 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 Resource Type: Map Access & Availability: Loading
44. Map showing outcrops of pre-quaternary basaltic 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 Resource Type: Map Access & Availability: Loading
45. 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 Resource Type: Map Access & Availability: Loading
46. 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 Resource Type: Map Access & Availability: Loading
47. 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 Resource Type: Map Access & Availability: Loading
48. 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 Resource Type: Map Access & Availability: Loading
49. 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 Resource Type: Map Access & Availability: Loading
50. 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 Resource Type: Map Access & Availability: Loading