Physical and digital records (1975- ) from the Mountain West chapter of the Art Libraries Society of North American (ARLIS/NA), which "promotes art librarianship in Arizona, Colorado, Montana, Nevada, New Mexico, Utah, and Wyoming."  Materials date from the chapter's founding (as the Arizona chapter of ARLIS/NA) in 1975, to the renaming to ARLIS/NA Mountain West around 1997, to the early 2020s.

Contents include annual reports, announcements, conference files, correspondence, financial records, general information, membership applications.