MINDELEFF] OVEN-LIKE STRUCTURES 127 
About 25 feet east of the reservoir there are remains of a small single 
room, rectangular, with a circular addition, shown on the ground plan. 
The walls are well chinked and well constructed, the mud mortar being 
used when about the consistency of modeling clay. In front of this 
room, about 5 feet distant and on the edge of the sloping rock, a hole 
has been pecked into the solid rock of the ledge. This hole is 12 inches 
wide on top, slightly tapering, 10 inches deep on the upper side, and 4 
inches on the lower. Twelve feet to the northeast there is a similar 
hole, and below it, distant 10 inches, another, and beyond this others, 
distributed generally along the foot of the sloping rock forming the 
back of the ledge, but sometimes farther out on the flat floor. Prob- 
ably these holes mark the sites of upright posts supporting a drying 
scaffold or frame, the horizontal poles of which extended backward to 
the wall of the cliff. 

Fic, 25—Oven-like structure in ruin No. 10, 
Near the center of the ledge, at the point shown on the plan, there are 
some remains which strongly suggest the Mexican oven. The bed rock, 
which is here nearly flat, was removed to a depth of about 4 inches over 
a rectangular area measuring 4 feet north and south by 34 feet. There 
were natural fissures in the rock on the north and west sides which left 
clean edges. The southern edge appears to have been smashed off with 
a rock. The eastern side required no dressing, as it was at a slightly 
lower level, and it was to reach this level that the rock was removed. 
In the rectangular space described there was a circular, dome-shape 
structure, about 3 feet in diameter, composed of mud and sticks, with a 
seant admixture of small stones. This is shown in figure 25, and in 
plan in figure 26. The walls were about 3 inches thick, and from 
their slope the structure could not have been over 3 feet high. The 
mud which composed the walls was held together by thin sticks or 
