Alaska Resources Library and Information Services (ARLIS) 
American Memories see Library of Congress American Memories
Bureau of Land Management Library
Bureau of Reclamation Service Center Library
California Libraries Catalog (CalCat)
Center for North American Herpetology (CNAH) PDF Library
ConserveOnline (The Nature Conservancy)
Denver Public Library
(Western History Collection:papers of Olaus Murie, John Muir, Howard Zahniser, Rosalee Edge to name a few)
Library of Congress American Memories
NCTC Conservation Library (FWS)
National Agricultural Library (AGRICOLA)
National Biological Information Infrastructure (NBII)
National Park Service (NPS) Combined Library Catalog
Office of Surface Mining Library
Smithsonian Institution Libraries
U.S. Army Corps of Engineers Library
U.S. Department of Agriculture see National Agricultural
Library (AGRICOLA)
U.S. Department of the Interior Library
U.S. Fish and Wildlife Service, National Conservation Training Center Conservation Library
U.S. Geological Survey Library
U.S. Geological Survey - Biological Resources Division - Libraries
- Columbia Environmental Research Center Library
- Great Lakes Science Center Library
- Leetown Science Center: Technical Information Service
- National Wetlands Research Center Library
- Northern Prairie Wildlife Research Center
- Patuxent Wildlife Research Center Library
University of Wisconsin Digital Collections
Upper Mississippi River Conservation Committee Library
698 Conservation Way
Shepherdstown, West Virginia 25443-9713
