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Mariposa Ranch

Los Morteros: A Hohokam Ballcourt Community in Northwestern Tucson


1987-1994


A major housing project included substantial modifications to the historic floodplain of the Santa Cruz River and to tributary drainages. The Army Corps of Engineers required Section 106 compliance prior to issuance of a Section 404 permit under the Clean Water Act.

 


Volunteer efforts significantly expanded the recovery of information from this large village site.


 


Early experimentation with ground-penetrating radar as a means to detect buried Hohokam pithouses was conducted cooperatively with University of Arizona researchers.


For the first time, the structure and magnitude of a very large Hohokam settlement in Tucson was obtained. We identified 770 prehistoric cultural features, including 349 structures. A summary of key findings includes:

• During the tenth and eleventh centuries, the settlement was organized into a series of village segments composed of several households that shared common roasting facilities, trash areas, and a cemetery.
• Settlement reorganization occurred in the early 1100s. Most of the southern part of Los Morteros was abandoned and a new settlement was established in the northern site area, including at least one adobe-walled compound enclosure with several structures within its walls. The residents of this new settlement may have been seasonally mobile.
• The large ceramic sample recovered allowed refinement and testing of the model of ceramic stylistic development that had been proposed in previous studies.
• The extensive collections of artifacts from burned houses and mortuary contexts provided an unusual opportunity for various analysts to investigate trends through time.


Many volunteers helped with the research at Los Morteros. Some aided our field investigations, working alongside crew members. Others participated in excavations conducted every other weekend during the course of the field season. These efforts greatly expanded the recovery of information from the site.

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