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USGS NRP Tucson: Landscape Change in the Southwest

Changes in Riparian Vegetation in Arizona

Gila River near Clifton (09442000), June 24, 1964

Image of Gila River near Clifton (09442000), June 24, 1964.
Raymond M. Turner Few large floods occurred on the Gila River in the middle part of the 20th century, and the riparian vegetation responded by growing in dense assemblages. Cottonwood trees in particular have benefitted, although the largest increase may be in the mesquite trees in the foreground. The perennial flow in the Gila can only be seen at far left, center, and far right owing to the increased stature of the plants.

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