Prehistoric cultural affiliation(s) include Southern Nevada Prehistoric, Southern Nevada Historic, Unknown and Pleistocene Era dating back to 26999 BC.
Some of the country's most noteable architects helped create the Clark County places including John S. Park, Pacific Fruit Express, A. Faget, Los Angeles & Salt Lake RR San Pedro, Eichenberger & Scoville and A.L. Worswick. Prominent architectural styles found in Clark Country are Mission/Spanish Revival.