NO. I 



ARCHEOLOGICAL INVESTIGATIONS — FEWKES 



25 



bench once covered the point of the mesa, and is separated from the 

 plateau by a deep fissure worn in the rock outside the wall on that 

 side. The height of the highest wall is 20 feet, and the bench around 

 the circular portion averages 3 feet high. In thickness the walls 

 vary from i to 3 feet. On the second ledge, or outcrop of hard rock 



Ground plan of ruin A, Hill Canyon, Utah. 



below the summit of the cliff, on which ruin A stands, there is a fine 

 example of the dug-out type of habitation, several of which occur in 

 the sides of this canyon. The roof of this type of dug-out is formed 

 by a flat slab of rock projecting horizontally from the cliff and form- 

 ing the protection for a chamber excavated in the soft rock below. 

 In some instances these dugouts have rudely constructed lateral and 

 front walls but none of them has more than one room. They appear 



