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USGS NRP Tucson: Landscape Change in the Southwest

Changes in Riparian Vegetation in Arizona

Salt River Near Chrysotile (09497500), June 25, 1964

Salt River Near Chrysotile (09497500), June 25, 1964.
(Raymond M. Turner) The water is low (about 97 ft3/s), exposing the bedrock that forms the channel bed and the low-water control downstream from the gaging station. In the intervening 29 years, three floods with peaks of greater than 50,000 ft3/s passed through this reach. Tamarisk is interspersed with the native shrubs on the floodplain, and tamarisk lines the previously denuded banks on river left. Palm trees (lower right), which are not native to this area, were planted as part of a roadside park well before this photograph was taken. The roadcut on the skyline has been widened.

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