Laguna Lake (California)
Laguna Lake is a shallow natural lake at the head of the Chileno Valley. Although Laguna Lake is officially classified as a vernal pool, it retains some water year round. The 200-acre lake is wide and long, straddling the Sonoma-Marin county line in northern California, United States. It is the source of Chileno Creek which flows west to Walker Creek.
It was included in the Rancho Laguna de San Antonio Mexican land grant, which was given to Bartolomé Bojorquez in 1845.
Laguna Lake is used extensively for migrating and breeding waterfowl, including whistling swans in winter.