Visiting the Casa Grande Ruins in Coolidge, AZ

Taking a break from the better part of a month un-packing boxes, Candy and I went to visit the Casa Grande Ruins National Monument in June, 2003.

The Casa Grande Ruins are located in Coolidge, AZ. The map is a little misleading because there's a town of Casa Grande about 10-15 miles west of Coolidge on I-10 between Phoenix and Tucson. Coolidge is about an hour drive north of Tucson. 

The ruins are very much in the Sonora Desert. It's becoming more and more a desert with every passing year. When they started measuring the depth of the ground water from the surface in the 1930's, the ground water was only about 12 feet below the surface. It is currently over 100 feet below the surface and dropping. Lets see, that's about 90 years and about 90 feet difference. That suggests the ground water is dropping at a rate of about 10 feet a year and, presumably, that rate is accelerating with the local population growth.

Quoting From Ancient Ruins of the South West: An Archeological Guide by David Grant Noble; Northland Publishing, (c) 2000:

"Casa Grande is a massive pueblo-style building on an open plane that has withstood the effects of weather and vandalism for six centuries. Its very existence today as more than just a dirt mound in the desert testifies to the strength of this "big house" and the immense construction investment of its builders.

"The Hohokam Indians, who built this three story mansion in the 1300s, designed it as a perfect 3:4 rectangle oriented to the cardinal directions. Deeply entrenched in the ground, its walls are more than four feet thick at their base, tapered to two feet at full height.

"The building material was caliche-adobe mud, which was mixed to a thick consistency  in pits in the ground, carried to the wall, and paddled by hand in courses about two feet high. Evidence of these courses is still visible in the wall cracking. The caliche, a desert sub-soil with high lime content, became brick hard when it dried, which accounts for the preservation of these ruins."

Though the Hohokam, Anasazi, Sinagua and other desert groups are generally considered historically to be very peaceful, agrarian peoples, I've been reading a number of articles recently that are re-evaluating the importance of warfare among these Pre-Columbian tribes. As we wandered the site, I was struck by the visible similarities between this ruin and those of Medieval castles in Europe.

The main structure at Casa Grande sits in the middle of a walled area that includes a number of other buildings. Though three stories tall, the lowest floor was originally elevated above ground level about 5-6 feet. There are only two points of entry to the main building, both must be entered by a ladder which may be withdrawn from above and could function much the same way a draw bridge did. The walls of the building are smooth and, with the exception of two small windows on each face, featureless. It would be impossible to climb the walls without ladders. In the meantime, the top most floor is recessed, leaving what could be very effective battlements - high enough to be virtually inaccessible from outside the structure, with a low, possibly protective wall around the periphery.

Perhaps I'm only romanticizing what I saw at Casa Grande but I think there's an inevitable functional comparison that follows closely on the heels of the visual similarities between this structure and the castles of yore.

We like to think there are great differences between one culture and another. However, I suspect the similarities are more numerous and, in the end, more telling.

This photograph shows one of the other structures at the southwest corner within the walled compound that contains the main "house".
Here is one of the doors in the outlying structure. I'd estimate that the door is about 3 1/2' tall requiring one duck and tuck to get through.

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