431. Map showing cumulative thickness of sandstone in the "Dakota Sandstone," 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
432. Map showing cumulative thickness of sandstone in the Eagle Sandstone and Telegraph Creek 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
433. Map showing cumulative thickness of sandstone in the Fox Hills-Lower Hell Creek aquifer, 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
434. 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
435. 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
436. 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
437. Map showing the difference between the potentiometric surfaces of the Magothy aquifer of September 1975 and September 1982 in Southern Maryland 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
438. Map showing the potentiometric surface of the Magothy aquifer in Southern Maryland, September 1982 Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Towson, Maryland : United States Department of the Interior, Geological Survey, 1982 Resource Type: Map Access & Availability: Loading
439. Map showing total thickness of the "Dakota Sandstone," 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
440. Map showing total thickness of the Eagle Sandstone and Telegraph Creek 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