Since then other valley oaks have been found of similar size.

Community leaders worked together to protect the valley oak.

The valley oak is the largest of the native California oak trees and can live to be 600 years old.

The valley oak was once common in central California, forming large groves along rivers and streams.

Notable trees in the preserve include valley oak and blue oak.

The village gained its name from the dense groves of dark green valley oaks of the area.

Trees, such as the valley oak, cottonwood, and willow are found along riparian corridors.

The valley oak is the only known food plant of Chionodes petalumensis caterpillars.

The valley's trees include the valley oak, the blue oak, and the interior live oak.

He sold Valley Oak Two for $2,325,000 on October 12, 2010.