Montana Libraries
- Montana State University Library—Billings
- Montana State University—Bozeman
- Montana Library Network: MLN Gateway
- University of Montana, Western Montana College—Dillon, Lucy Carson Library
- Montana State University Billings
- Montana State University, Northern Montana College—Havre, Vande Bogart Library
- University of Montana , Montana College of Technology—Butte
- University of Montana—Missoula, Maureen and Mike Mansfield Library
- Carroll College—Helena, Corette Library
- Montana State University Great Falls
- Flathead Valley Community College—Kalispell
- Rocky Mountain College—Billings, Paul M. Adams Memorial Library
Idaho Libraries
- Idaho State University—Pocatello, Eli M. Oboler Library
- Boise State University, Boise, Albertsons Library
- University of Idaho at Moscow
- Idaho State Library at Boise
- LiLI -- Libraries Linking Idaho
- North Idaho College—Coeur d’Alene, Molstead Library
- Brigham Young University--Idaho, David O. McKay Library
North Dakota Library
South Dakota Library
Utah Libraries
- Brigham Young University—Provo, Harold B. Lee Library
- University of Utah—Salt Lake City, J. Willard Marriott Library
- Utah State University—Logan
- Weber State College—Ogden, Stewart Library
Washington Libraries
- Gonzaga University—Spokane, Ralph E. and Helen Higgins, Foley Center Library
- Eastern Washington University—Cheney, John F. Kennedy Library
Wyoming Library