This collection is comprised of research files dating from approximately 1980 to 2021 created by Boulder City Nevadan, Dennis McBride, primarily in support of his book, Out of the Neon Closet: A History of Gay Las Vegas on the history of the lesbian, gay, bisexual, gay, transgender, and queer (LGBTQ) community in Southern Nevada. Materials in this collection also include ephemera and clippings documenting LGBTQ establishments and organizations in Las Vegas, biographies of individuals, and other issues pertinent to the LGBTQ community. This collection also includes some materials about the LGBTQ community and their issues in Northern Nevada. The collection represents McBride's overall efforts to document and preserve the history of the LGBTQ community in Nevada.

The Pueblo Grande de Nevada Manuscript Collection (1924-1983) contains journal articles, photocopies of artifact inventories, reports, correspondence, and field notes related to the Pueblo Grande de Nevada archaeological site located in the Overton Valley of Southern Nevada. The bulk of the materials are related to Mark R. Harrington's archaeological reports, journal articles, and data from sites throughout the Overton and Moapa valleys. The collection also includes materials related to the Boulder Dam Park Museum (Lost City Museum of Archaeology) located in Overton, Nevada, which housed many of the artifacts and photographs from Harrington's archaeological sites.