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Reservoir A is formed by Resevoir A Dam which is part of the Lewiston Orchards Project. Recreation on this 146-acre impoundment with 3-miles of shoreline is administered by the Lewiston Orchards Irrigation District. Facilities limited to day use. Available species include rainbow trout, crappie, and largemouth bass. Season open year-round.
Effective immediately, Reclamation will require all boats launching at Lake Berryessa to participate in a seal program to prevent the spread of invasive mussels. All vessels wishing to launch at Lake Berryessa will be inspected. A red quarantine seal will be applied for 30 days during, which the vessel will not be permitted to launch. Vessels that have finished the 30-day quarantine may return to the lake and have the seal removed by authorized staff and will be allowed to launch. For more information on this updated protocol, please view the press release here: https://www.usbr.gov/newsroom/news-release/5031.
Directions: Located southeast of Lewiston off County Rd. P2.