paraphrasing and quoting from the present-day site guide:
The back-side of this Pueblo supported floors at least 3 stories tall (estimates run as high as 5), with the wall tappering inwardly as it rose. Chacoan walls are commonly referred to as core-and-veneer, the core consisting of roughly-shaped stones and rubble laid flat in adobe (mud) mortar which was then faced with carefully shaped stones to make a veneer (an important structural element) on both sides of the wall. The lower story wall was very wide creating a strong and stable base on which the upper stories rested. The decrease in wall width in each additional story lightened the load of the upper stories on the massive base. Decreasing wall widths also demonstrated that the second and third stories were planned before the first story was built
moving down a quarter of the wall's length facing west, . . .
Chetro Ketl, 1 Pueblo Bonito Pueblo del Arroyo Casa Chiquita Kin Kletso Casa Rinconada
WUPATKI MESA VERDE AZTEC CHACO CANYON
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