The Ancient Casa Grande Ruins
Additional Details:
| Casa Grande ""The Great House"" undoubtedly are the oldest pre-historic ruins in the United States, said to date back to about 800 A. D., and was once a dwelling of the Toltecs. The ruins were originally five stories in height and constructed of adobe and gravel concrete. For the preservation of the ruins, 480 acres have been set aside as a National Monument by the government |
