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USGS NRP Tucson: Landscape Change in the Southwest

Changes in Riparian Vegetation in Arizona

Pantano Wash Near Vail (09484600), November 28, 2000

Image of Pantano Wash Near Vail (09484600), November 28, 2000.
Dominic Oldershaw, Stake 2219 In the 39 years between the photographs, the largest flood was 13,000 ft3/s in 1981. Cottonwood trees are now established near the low-water channel, and mesquites have grown up on the banks. The density of saguaros has also increased, particularly at right center.

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