Photograph of the Las Vegas Hacienda hotel parking lot. The hotel is centered in the picture, with the Hacienda written on the tower. There are dozens of cars parked in the parking lot leading up the motel's doors.

Photograph of the Las Vegas Hacienda hotel. The hotel is centered in the picture, with the Hacienda written on the tower. There are dozens of cars parked in the parking lot leading up to the motel's doors.

Photograph of the Las Vegas Hacienda hotel parking lot. The hotel is centered in the picture, with the Hacienda written on the tower. There are dozens of cars parked in the parking lot leading up the motel's doors

Photograph of the Las Vegas Hacienda hotel parking lot. The hotel is centered in the picture, with the Hacienda written on the tower. There are dozens of cars parked in the parking lot leading up the motel's doors

Photograph of the Las Vegas Hacienda hotel. The hotel is centered in the picture, with the Hacienda written on the tower. There are dozens of cars parked in the parking lot leading up to the motel's doors.

From introduction: The geologic studies in the Ul2e.03a and Ul2e.03b tunnels were conducted as part of the Geological Survey's investigations for the Vela Uniform program, Project Shade, and were completed for the purpose of 1) determining the preshot lithologic, structural, and chemical and physical properties of the tuffs exposed in the tunnels for comparison wits postshot geologic data, and 2) evaluating these data in order to predict the geologic effects of the planned nuclear explosion at tie end of the tunnels.

From introduction: The geologic studies in the U12b.08 tunnel were conducted by the U. S. Geological Survey on behalf of the U. S. Atomic Energy Commission for the purpose of determining the pre-explosion chemical and physical properties of the tuffs exposed in the tunnel. These data will be used in evaluating the geologic effects of the explosion by comparison with similar post-shot geologic data.

Report containing information regarding the airborne radiometric equipment intercalibration exercises undertaken by four government agencies and one private companies.