San Juan County New Mexico (Historic Districts) has 7 places on the National Register of Historic Places including 4 places of National significance and 2 places of Statewide significance. Significant places include Aztec Ruins National Monument, Crow Canyon Archeological District, Gallegos Wash Archeological District, Morris' No. 41 Archeological District and Aztec Main Street Historic District.
Prehistoric cultural affiliation(s) include Navajo, Archaic and Anasazi dating back to 3999 BC. Prominent architectural styles found in San Juan Country are Italianate, Bungalow/Craftsman and Classical Revival.