O'Neill Forebay
California, United States
O'Neill Forebay is a forebay to the San Luis Reservoir created by the construction of O'Neill Dam across San Luis Creek approximately 12 miles (19 km) west of Los Banos, California, United States, on the eastern slopes of the Pacific Coast Ranges of Merced County.
Reservoir data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).