MINDELEFF] CASA BLANCA RUIN 105 
from it only by some 35 feet 
of vertical cliff. There is evi- 
dence, however, that some of 
the houses in the lower settle- 
ment were four stories high 
against the cliff, and in fact 
that the structures were 
practically continuous; but 
for convenience of descrip- 
tion we may regard the ruin 
as composed of two. 
The lower ruin covers an 
area of about 150 by 50 feet, 
raised but a few feet above 
the bottom land, probably 
by its own débris. Within 
this area there are remains 
of 45 rooms on the ground, 
in addition to a circular 
kiva. On the east side there 
are walls still standing to a 
height of 12 and 14 feet. It 
is probable that the lower 
ruin comprised about 60 
rooms, which, with a liberal 
allowance for the rooms in 
the cave. would make a total 
of 80. This would furnish 
accommodations for a maxi- 
mum of 10 or 12 families or 
a total population of 50 or 
60 persons. It is probable, 
however, that this estimate 
is excessive and that the 
total population at any one 
time did not exceed 30 or 40 
persons. 
The ground plans shown 
are the result of a very care- 
ful survey, plotted on the 
ground on a large scale (10 
feet to 1 inch—1:120), and 
theirregularities Shown were 
carefully noted and putdown 
at the time. These irregu- 
larities, which are commonly 
ignored in the preparation 
som ofvany [=] sym agopy WW 

“UIs voOUR[g BSL Jo Javed LOMO] ONY Jo LIA punory—pHFT “HIT 
