Bureau of Reclamation, Washington.
This area includes Winchester Reservoir, Winchester Wasteway, Frenchman Hills Wasteway, and numerous small ponds and marshes. Fishing is year-round for yellow perch, crappie, largemouth bass, smallmouth bass, and rainbow trout. Access is limited in some areas. Boat motors are prohibited seasonally on Winchester Wasteway. Some sites have restrooms and boat ramps.
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.
South from Ephrata on State Highway 283.