Sunset Park stands on the Minden-Gardnerville boundary beside former telephone company offices, a site chosen because of the area's long telecommunications history. In the early 1900s, United Farmers Telephone and Telegraph provided local service and extended it into a growing rural region. In the 1940s, United Farmers became California Interstate Telephone Company, later Continental Telephone and Telegraph, serving the South Lake Tahoe portion of El Dorado County, as well as Alpine and Mono Counties in California, and the Stateline, Topaz, and Carson Valley portions of Douglas County, Nevada. In some areas, hand-crank telephones remained in use into the 1960s, and places such as Fish Springs received their first telephone service in the 1970s. In the early 1960s, Dial Day allowed customers using the prefix Sunset to dial directly anywhere in Carson Valley without going through a switchboard staffed by as many as eight operators at one time. Even in the 1980s, some parts of the region, including Mono and Alpine Counties, could be reached from Carson Valley only with operator assistance. When the company ended prefixes in the 1970s and adopted all-number calling, the Sunset prefix became 78, which remains in use for telephone access in Minden and Gardnerville. Sunset Park itself was conceived, designed, engineered, financed, and constructed through a joint effort involving Resource Concepts, Inc., Bruce Scott, Brenda Stein, Sandra Wendel, Casinelli Landscaping and Construction, Michael and Angel Gilbert, the Minden Town Board, and the staff of the Town of Minden, with assistance and cooperation from Douglas County, the Town of Gardnerville, neighboring landowners, and Verizon and its predecessors.