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USGS NRP Tucson: Landscape Change in the Southwest

Changes in Riparian Vegetation in Arizona

Santa Cruz River at Tucson (09482500), December 17, 1994

Santa Cruz River at Tucson (09482500), December 17, 1994. Dominic Oldershaw, Stake 3300 The channel of the Santa Cruz River is now confined by soil-cemented banks. The open gallery forest of cottonwood trees was destroyed by ground-water pumpage and development, and the channel reached its present depth between 1977 and 1983.

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