1. Machine-readable files developed for the High Plains Regional Aquifer-System analysis in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming Author/Creator: Ferrigno, Carmelo F., author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1986 Resource Type: Book Access & Availability: Loading
2. Major geochemical processes related to the hydrology of the Madison aquifer system and associated rocks in parts of Montana, South Dakota, and Wyoming Author/Creator: Busby, John F., author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1983 Resource Type: Book Access & Availability: Loading
3. Major-ion and selected trace-metal chemistry of the Biscayne aquifer, southeast Florida Author/Creator: Radell, Mary Jo, author Publication/Creation: Tallahassee, Florida : U.S. Geological Survey, 1991 Resource Type: Book Access & Availability: Loading
4. Major-ion and selected trace-metal chemistry of the Biscayne aquifer, southeast Florida Author/Creator: Radell, Mary Jo, author Publication/Creation: Tallahassee, Florida : U.S. Geological Survey, 1991 Resource Type: Book Access & Availability: Loading
5. Map showing altitude of the top of the "Dakota Sandstone," Montana Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Lakewood, Colorado : Open-File Services Section, Western Distribution Branch, USGS Resource Type: Map Access & Availability: Loading
6. Map showing altitude of the top of the Eagle 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
7. Map showing altitude of the top of 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
8. Map showing altitude of the top of 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
9. Map showing altitude of the top of 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
10. Map showing altitude of the top of 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