Ash Creek is one of the most remote, least improved, and most pristine of all of CDFW's Wildlife Areas. Located in the heart of Big Valley, these approximately 14,400 acres preserve freshwater wetlands created by the seasonal flow of six streams, including Ash Creek. In addition to 3,000 acres of natural wetlands, other natural communities include vernal pools and upland sagebrush. Among the mammals seen here are pronghorn antelope, beaver, and bobcat. Bird species include numerous waterfowl species, sandhill cranes, falcons, sage grouse, short-eared owls, and bald eagles.