Abstract
Historic records of arroyo formation have long been used as inferential tools for reconstructing paleoclimate in the American Southwest. Archaeologists use these paleoclimatic reconstructions as convenient boundaries for demarcating long-term changes in human settlement and subsistence. The rapid accumulation of new data on the hunter-gatherer/agricultural transition, however, requires the use of higher-resolution spatial and temporal data from geoarchaeology. High-resolution documentation of channel exposures helps us interpret this transition along the Santa Cruz River, Tucson, Arizona, at a scale that is more relevant to the archaeological issues of today. © 2000 John Wiley & Sons, Inc.
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