1923] 



WEST, GRAND CANYON CLIFF DWELLINGS 



87 



traceable. Here are many evidences of habitation in the shape of 

 fire remains, potsherds and other similar items. 



Room 13. At a level about three feet lower than that of room 12, 

 is one with curved walls, which measures about ten feet in width, 

 north and south, and twelve feet east and west. The center of the 

 floor has been dug out by someone and shows considerable fire re- 

 mains at a point about eighteen inches below the present floor level. 



In a niche of the rear wall of this room and at a point about ten 

 feet above the original floor level, are the remains of a tiny storage 



Fig. 55. — Sloping roof of Room No. 10, Upper Ribbon Falls cliff ruin. 

 Made of mud-mortar, reinforced with thin slabs of stone. 



room, made by supplying the south wall only, the natural rock form- 

 ing the roof, rear and north walls of the room. The front of this storage 

 room has fallen away, but it was originally about two feet long and 

 about a foot and a half in height. 



Also on a ledge about four feet above the original floor level of 

 room 13, are the vestiges of another tiny storage room, made by sim- 

 ilarly walling up a natural niche in the rock. 



Room 14. On a ledge, about eight feet in width and at a level 



