The Yucca Mountain Site Characterization Office collection (1958-2001) was assembled through a joint effort between the Nuclear Regulatory Commission (NRC) and the James R. Dickinson Library, University of Nevada, Las Vegas (UNLV) to provide public access to documentation and correspondence about the proposed high-level radioactive waste geologic repository site near Yucca Mountain, Nevada. Materials include technical reports, contractor reports, public hearing transcripts, safety evaluation reports, environmental impact statements, emergency plans, inspection reports, licensee event reports, and general communications. The collection includes documents from several other government entities such as the Yucca Mountain Site Characterization Office, Department of Energy, Office of Civilian Radioactive Waste Management (OCRWM), Nevada Nuclear Waste Storage Investigations (NNWSI), United States Geological Survey (USGS), Sandia National Laboratories, Lawrence Livermore National Laboratory, and Los Alamos National Laboratory.

Oral history interview with Polly F. Lilly conducted by Connie L. Patterson on March 26, 1976 for the Ralph Roske Oral History Project. In this interview, Lilly discusses a range of topics, from building a Catholic church in early Las Vegas, Nevada, to the nearby nuclear weapons tests. She also describes witnessing a confrontation between Senator Joseph McCarthy and Hank Greenspun on stage at the now demolished War Memorial Building in Las Vegas, Nevada.

The Edward Halligan Papers (1962-1966) contain instructions and booklets on atomic testing, newspaper clippings, and newsletters. There is information on the underground detonations of "Project Long Shot," and "Project Rover" that took place at the Nevada Test Site. Also included is a speech, given by Halligan, titled "Technical Operations on Project Long Shot."