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USGS NRP Tucson: Landscape Change in the Southwest

Changes in Riparian Vegetation in Arizona

Santa Cruz River at Tucson (09482500), November 22, 1930

Image of Santa Cruz River at Tucson (09482500), November 22, 1930.
photographer and number unknown This downstream view, taken from near the west abutment of the old Congress Street Bridge, shows the wide alluvial channel of the Santa Cruz River. At this time, the river flowed through a rural area, and cottonwood trees lined its banks. The relatively shallow arroyo began downcutting in 1878, and the 1916 flood caused the most recent channel change before 1930.

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