Prehistoric cultural affiliation(s) include Navajo, Archaic Hunter Gatherers, Anasazi-Tewa and Modern Tewa And Hispanic dating back to 4999 BC.
Some of the country's most noteable architects helped create the Rio Arriba County places including U.S. Army Corps of Engineers and W.C. Kruger. Prominent architectural styles found in Rio Arriba Country are Greek Revival, Mission/Spanish Revival and Modern Movement.