Photographs taken circa 1907-1914 in the Las Vegas, Nevada area, including Fort Callville, and during travels in California; Washington State; Idaho; Montana; and Oregon, with emphasis on Yosemite National Park and Yellowstone National Park. Album also features photographs taken at the 1911 Yakima (Washington) State Fair and in Salt Lake City, Utah, and Goodsprings, Nevada during the same period.
The David Donovan Collection on Hydrology and Geology (1911-2011) is comprised of the research collected by former Las Vegas Valley Water District employee, David Donovan, about groundwater, hydrology, minerals, and geology in Nevada, as well as the surrounding areas of California, Arizona, and Utah. Included are reports, professional papers, maps, and books.