Watershed and Course
The Uvas Creek watershed drains the eastern slope of the Santa Cruz Mountains in southern Santa Clara County. On the upper section of the creek is Uvas Canyon County Park. Uvas Reservoir, built in 1957, drains 32 square miles (83 km2) and is 7.5 miles (12.1 km) upstream of the City of Gilroy and 10.5 miles (16.9 km) upstream of the Pajaro River confluence. Significant tributaries include Croy Creek, Little Uvas Creek, Little Arthur Creek, Bodfish Creek and Gavilan Creek. Below Uvas Reservoir the creek is very low gradient. After Uvas Creek crosses Highway 101 and becomes Carnadero Creek (aka lower Uvas Creek) it is joined from the right by Gavilan Creek, Tick Creek and then Tar Creek. Uvas Creek is the only stream in the Pajaro River watershed, and in Santa Clara County, whose water right specifies minimum winter and summer releases for maintaining fish resources.
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