List of links to electronic USGS products and publications and/or information on obtaining products in paper or other formats arranged by discipline, media type, and online products, and links to USGS libraries.
List of Illinois District publications, report abstracts, water resources abstracts, and fact sheets, newsletter archives on water resources in Illinois with links to online publications.
Clearinghouse for the description and availability of multiple geospatial datasets relating to Alaska from many federal, state and local cooperating agencies under the coordination of the Alaska Geographic Data Committee.
Links to information on species of frogs, toads, and salamanders located in the southeastern United States and the U.S. Virgin Islands, with information on appearance, habitats, calls, and status, plus photos, glossary, and provisional data.
Online annual reports (since 1999) documenting hydrologic data for Pennsylvania gathered from USGS surface water and ground water data-collection networks and information on ordering paper copies of previous years.