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The Valley Farms Sites
Prehistoric Floodplain Agriculture on the Santa Cruz River in Southern Arizona
Edited by Kevin D. Wellman
SWCA, Inc.
242 pp. / 8.50 in x 11.00 in / 2008
Paper (978-1-9319-0122-2) [s]
Related Interest
  - Archaeology

Archaeological investigations by SWCA Environmental Consultants revealed stratified archaeological deposits dating to the Late Archaic-Early Agricultural period. Excavations identified ephemeral structures, features, and artifact assemblages indicating seasonal reoccupation of this portion of the Santa Cruz River floodplain dating to the San Pedro period, 3100-2700 B.P. The dates for the Archaic period component were defined with 20 AMS dates on maize, making it contemporaneous with other early sites in the Tucson Basin. One date, 3145±50 B.P. is one of the earliest dates for maize in the American Southwest. Additionally, excavations revealed pre-Classic and Classic period Hohokam components including pit structures and cremations.

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