31. Map showing cumulative thickness of sandstone in the Judith River Formation, Montana 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
32. Map showing cumulative thickness of sandstone in the Lakota Formation and equivalent rocks, Montana 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
33. Map showing cumulative thickness of sandstone in the Swift Formation, Montana 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
34. Map showing morphometry, bathymetry, and soft-sediment thickness of Plow Shop Pond and Grove Pond, Ayer, Massachusetts Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 1999 Resource Type: Map Access & Availability: Loading
35. Map showing outcrops of ash-flow tuffs, basin and range province and vicinity, Trans-Pecos Texas 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
36. Map showing outcrops of basaltic rocks of early quaternary and tertiary age, basin and range province, Nevada 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
37. Map showing outcrops of basaltic rocks of early quaternary and tertiary age, 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
38. Map showing outcrops of granitic rocks and pre-quaternary ash-flow tuffs, basin and range province, Oregon 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
39. Map showing outcrops of granitic rocks and silicic shallow-intrusive 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
40. Map showing outcrops of granitic rocks and silicic, shallow-intrusive 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