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SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 68 



One feature of many open-sky ruins of the Yellow Jacket which 

 distinguishes them from Mesa Verde ruins is their site. They arise 

 at the heads of canyons or along the rim rock, while as a rule the 

 Mesa Verde pueblos, like Far A-'iew House, are situated some distance 

 from the edge of the canyon, like some ruins in the Yellow Jacket 

 series. 



Fig. 135. — Model of Horseshoe Ruin. 



The simple, isolated towers in the Mesa Verde resemble those of 

 the Hovenweep. liut there are many mounds on Mesa \'erde awaiting 

 excavation where there was probably a union of towers and pueblos. 



The walls of the " great house " type of this region show less wear 

 by the elements than those of the open-sky buildings on the Mesa 

 A^erde. As the destruction by atmospheric causes must have been 

 about the same, year by year, in the two regions, it would be natural 



