Memory and the Construction of Chacoan Society 191
pits in some great kivas are best interpreted as votive deposits. Some great kivas appear
to possess acoustic properties that would have lent themselves well to ceremonial
activities. Floor vaults may have been used as foot drums, overlain with wooden planks
that would make a booming noise when people jumped or danced atop them.A sub-
terranean passageway leading into a screened area in the great kiva at Casa Rinconada
would have facilitated surprise entrances at dramatic moments (figure 9.4).
Perhaps the strongest evidence for the use of great kivas as stages for ritual events
is found in the standardization of size, orientation, layout, and interior features
described above. Religious architecture tends to be conservative, incorporating icono-
graphic material symbols easily recognized by ceremonial participants and observers.
Great kivas fit Adler and Wilshusen’s (1990:135–6) conception of high-level integra-
tive facilities, in which the area of a space used for ritual does not fluctuate with
population size but is part of a suite of uniform characteristics. Abstract, religious
ideas are often communicated through repetition in the inscribed memory processes
discussed by Rowlands (1993). Thus it is likely that the repetitive, conservative,
increasingly formalized iconographic form of the great kiva was more important to
the builders than the mere need to establish a meeting space. Great kivas represented
a shared idea and provided a locus for a suite of religious activities that crosscut other
differences within the canyon as well as among the outliers.
The repetitive iconography inside great kivas is likely to have conveyed symbolic
messages to ritual participants. One of these messages, I argue, involved the con-
struction of a social continuum extending from the Classic Bonito phase back three
hundred years or more. The boom in great kiva construction during the 1000s ad is
an example of Chacoan leaders’ use of architecture to reference the more egalitarian
Pueblo I and Basketmaker III past.These circular, subterranean structures evoke earlier,
communal ideologies and integrative practices, helping to naturalize new and unequal
distributions of labor, surplus, and prestige.
The round shape of these structures would seem to have facilitated social interac-
tion, which is why great kivas are often termed integrative spaces.This may well have
been the case in earlier periods, but I contend an association between great kivas and
social integration during the Classic Bonito phase may be intentionally misleading.
Classic Bonito phase great kivas pose a curious contradiction between exclusionary
and inclusive space: the structures would not have been ideal venues for open public
events on the scale of those envisioned at Chaco which, using conservative popula-
tion estimates, might easily have involved two thousand people (Lekson 1988). Ritual
events accessible to thousands could have taken place in great house plazas, on roofs,
or on top of mounds, but not in great kivas – using an estimate of 1sq.m of floor
space per person, only about 250 people could have fit in a great kiva with an 18m
diameter floor such as Casa Rinconada. The actual number may have been even
smaller, as this estimate discounts the area taken up by the floor features and leaves
no room for activities inside the structure, although people may have crushed together
in tight proximity to witness events in the structure’s center. There were up to ten
great kivas in Chaco Canyon that may have been in contemporaneous use during the
Classic Bonito phase; by the same calculations, canyon great kivas could have accom-
modated a more reasonable total of 2,500 people, if simultaneous events were held