Berryessa
Berryessa refers to a geographical area and a large reservoir located in Napa County and Solano County, California. The most prominent feature is the Berryessa Reservoir, which is the largest lake in Napa County and the seventh largest in California. It was formed by the construction of Monticello Dam on the Putah Creek, completed in 1957. The reservoir is a significant source of water for agriculture and urban use in the surrounding regions.
The area is named after the Berryessa family, who were early settlers and landowners in the region.