Davidson Canyon contains perennial and intermittent reaches and springs, is in a free-flowing condition, and the water quality data provided by PAG indicates that the water quality is good. Davidson Canyon possesses attributes that make it of exceptional ecological significance. Davidson Canyon is one of the largest drainage into the Cienega Corridor. It is widely recognized as a major contributor to the continued health of the water aquifer in the Tucson Basin. One of the main tributaries to Cienega Creek, which recharges nearly 20% of Tucson's water supply.
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