100 CASA GRANDE, ARIZONA [BTH. ANN. 28 
SOUTHEAST PLAZA 
In the southeast plaza (pl. 30, 6) of Compound B evidences of several 
rooms were brought to light, although for the greater part their once 
massive walls were very much broken down. Here were found 
indications of fragile-walled rooms, their floors situated one above 
another, separated by a few inches of. soil. There had evidently 
been a change of plan in this quarter which had led to secondary con- 
struction, thus modifying more or less the original architecture. 
The exterior walls of the compound at this point and for about 50 
feet north along the east wall are double. Within the inclosure 
near the southeast angle’ appeared rows of decayed posts, remains 
of walls, arranged in quadrangular form, indicating the former 
existence of several fragile-walled dwellings. 
East of Pyramid A, between it and the east wall of the compound, 
were traced portions of the massive walls of a large building, very 
much mutilated. To the north of this building are remains of three 
fine rectangular buildings having well-formed floors, fireplaces, and 
walls. 
NORTH PLAZA 
Due north of Pyramid A, between it and the north wall, from 
which it is separated by a narrow passage, was found a large building 
fully 40 feet long; the floor is partially subterranean and the door- 
way opens to the south. Between this building (pl. 41, a, 6) and 
the northeast corner of the compound were other massive rocms 
the walls of which are destroyed to so great an extent that their 
ground plan can not satisfactorily be traced. In this region reoe- 
curs evidence of successive strata of floors (pl. 41, a), suggesting 
repeated occupancy of the same site by the rebuilding of new houses 
on the débris formed by the destruction of older ones. Almost all 
the north side of this compound is occupied by a room 15 feet wide 
and extending in length about 80 feet eastward from the north- 
west angle. The use of a room of this shape and size is conjectural. 
There is no evidence of the former existence in this area of rooms 
ot fragile construction. 
WEST AREA 
The west area of the inclosure (pls. 36, 6; 38; 39, 6), or the section 
north of Pyramid B, was wholly covered with fragile-walled build- 
ings, the remnants of which show that they were built along streets 
and around courts, which can still readily be traced. Here occur also 
remnants of thick walls, indicating dwellings of moderate height but 
without large rooms. It would seem from the arrangement of the 
rows of holes in which the upright supports of the former walls stood, 
1It was not possible to trace the rooms by means of the remaining wals in the southeast angle of this 
inclosure, owing in part to the dilapidated condition of these walls. 
