Berryessa Snow Mountain National Monument is a national monument of the United States comprising 330,780acre of the California Coast Ranges in Napa, Yolo, Solano, Lake, Colusa, Glenn and Mendocino counties in northern California. Cache Creek Wilderness is located within the monument.CreationThe national monument was created by a proclamation issued on July 10, 2015 by President Barack Obama under the Antiquities Act. Obama also signed proclamations creating two other national monuments (the Basin and Range National Monument in Nevada and the Waco Mammoth National Monument in central Texas) the same day. The monument will be jointly managed by the Mendocino National Forest of the U.S. Forest Service and the Bureau of Land Management
