FEWKEs] aROtJP C OF THE BLACK FALLS RUII^^S 53 



mill A of group B. There is good evidence that this ruin once had 

 large floor beams, as is indieated by openings in the walls in which 

 they rested. 



Examination of the ground plan (figure 10) shows that the whole 

 surface of the mesa was onee covered with rooms, the walls of which 

 still extend to its edge. The highest walls, those which surrounded 

 room .\, are three stories. The two outside walls rise directly from 

 the edge of the perpendicular cliff. There are several small openings 

 at various levels, and holes in which rested the great beams that once 

 supported the flooring are readily seen. At the corners of the rooms 

 the masonry of the second story is bonded to that of the first and 

 third, imparting solidity and strength to the high walls. There is no 

 entrance or passageway between rooms a ;ind (', Init access was had 

 to room A from room B. Room B is almost perfectly inclosed by 

 standing walls, formerly two stories high. The wall on the north side 

 has been overturned, and the many stones which have fallen at the 

 base make an entrance at this point po.ssible. As is shown by the 

 depressions in the walls, this structure once had two large beams in 

 the roof of the first stpiy, but they have di.sappeared. Room C has 

 one story; its walls are complete on all sides, and there is an interior 

 entrance into room D, and an exterior passageway. Rooms A, B, and C 

 are conspicuous from a distance and form the greater part of the ruin. 

 At intervals on the rim of the mesa other walls are found, some sec- 

 tions of which are 4 or .5 feet high. It is difficult to trace the walLs 

 of the rooms designated D and E. This i-uin also has cave rooms at 

 the south base of the mesa, which recall those of the other ruins in 

 the Black falls cluster. 



Plate XVII shows ruin A, group C, from the east. The tall, sf^uare 

 tower on the left of the plate incloses room a, and the lower wall 

 extending to the gap is the side of room C. The fragments of masonry 

 on the right of the gap are all that remain of the walls of room E. 

 The mounds on the mesa to the right Of the last are remnants of an 

 encircling wall and of rooms which once surrounded the open space 

 on the end of the mesa. On this side of the mesa the upper part 

 overhangs the lower, forming a cave, but no indication of rooms was 

 detected here. 



The wall on the edge of the mesa which shows at the left of plate 

 XVIII is a part of room D, and at the bottom of the clifl" at this point 

 can be seen the walls of the basal rooms built at right angles to the 

 cliffs. These are also shown in plate xix. 



The cemetery is about 100 yards east of the ruin and is small in 

 extent. The mortuary ob.iects found in a single grave opened will 

 give an idea of the burial deposits. The graves are oval, and consist 

 of cysts made of slabs of stone set on end and covered with other flat 

 stones. The upright stones were cemented together with adobe, the 

 covering slabs being apparently luted to the edges of the uprights. 

 The.sc burial cvsts were commodious, and in the one uncovered the 



