The campus has kept the murals made by former Valley Oak graduates. Community leaders worked together to protect the valley oak. Mooney Grove Park is still one of the largest valley oak woodlands in California. It is one of the largest Valley Oak Woodlands in Central California. Fremont cottonwood and valley oak thrive in the Central Valley. Trees, such as the valley oak, cottonwood, and willow are found along riparian corridors. David Carr attended Valley Oak Elementary School in Fresno, California. Valley oak tolerates cool wet winters and hot dry summers, but requires abundant water. The area is dominated by oak species, like the valley oak and blue oak. Removing a Valley oak tree without a permit can be a $1,000 fine. Notable trees in the preserve include valley oak and blue oak. Valley oak is found in dense riparian forests, open foothill woodlands and valley savannas. The valley oak is the only known food plant of "Chionodes petalumensis" caterpillars. The Hooker Oak of Chico, California, was once considered the largest known valley oak. The valley's trees include the valley oak, the blue oak, and the interior live oak.