The collection consists of 13,424 photographs, 403 slides, 786 negatives, and 21 CDs, with the vast majority being aerial photographs taken of the landscape in Utah, Arizona, Nevada, and portions of other states. The photography spans the large growth years of Washington County from approximately 1982 to 2005. A small portion of the collection consists of ground shots and family photographs. Most of the work was done in the Southern Utah and Northern Arizona areas. The Utah counties of Washington, Kane, San Juan, Iron, and Garfield are the most photographed, but included are photos from counties running northward to Salt Lake County, including some counties on the east and west sides of the I-15 corridor. The Arizona counties of Coconino and Mohave and Clark County in Nevada are also represented. A small number of photographs were also taken in and around Blackfoot, Idaho. Municipalities and commercial entities such as planning commissions and committees for the development of newly annexed and purchased properties contracted aerial landscape studies with the Murdocks. Water conservation and dam engineers also commissioned aerial photographs with them. Among the cities photographed are the following: St. George, Washington, Hurricane, Leeds, New Harmony, Cedar City, Payson, Nephi, Manti, Richfield, and Milford in Utah; Fredonia, Beaver Dam, and Colorado City, Arizona; Mesquite and Glendale, Nevada. Commercial entities include: Walmart, Sun River, Brian Head Resort, Coral Canyon, and others. The collection also contains landscape aerial photography of places like Brian Head, Cedar Breaks, and Zion and Bryce National Parks.