Casa Grande National Monument

Casa Grande National Monument, Coolidge, Arizona. County/parish: Pinal.

Added to the National Register of Historic Places October 15, 1966. NRIS 66000192.

4 contributing structures.

From Wikipedia:

Casa Grande Ruins National Monument

Casa Grande Ruins National Monument (O'odham: Siwañ Waʼa Ki: or Sivan Vahki) is a United States national monument preserving a group of Classic Period (1150–1450 CE) Hohokam structures in Coolidge, Arizona, northeast of Casa Grande.

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National Park Service documentation: https://catalog.archives.gov/id/75610612

LC