96 CASA GRANDE, ARIZONA (er, ANN. 28 
as much as 5 feet and is, on the average, about 34 feet. Outside 
the wall, about 7 feet from the former foundation, was dug a shallow 
ditch surrounding the whole compound. This ditch was continued 
780° 
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+ 
ene 
8 
“” 
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46 
Frc. 13. Ground pian of Compound B (made before completion of excavation), showing heicht of walls 
in feet. 
into deeper ones extending from the northwest and southwest corners 
(pl. 35) in order to carry all superfluous water from the foundations 
of the walls into a natural depression some 50 feet from the com- 
pound. (Pl. 28.) 
a a 
