San Luis Reservoir, Water reservoir in Merced County, California.
The San Luis Reservoir holds 2 million acre-feet of water, extending nine miles long and five miles wide in the eastern slopes of Diablo Range.
The reservoir began operations in 1969 after construction by the Bureau of Reclamation, becoming the largest off-stream storage facility in the United States.
The land was previously part of Rancho San Luis Gonzaga before its transformation into a water management facility serving California's agricultural needs.
The recreation area features multiple entry points with designated parking areas, campgrounds, picnic sites, and facilities for boating and fishing activities.
The Gianelli Hydroelectric Plant harnesses the 319-foot elevation difference between the reservoir and O'Neill Forebay to generate power for Los Banos.
Location: Merced County
GPS coordinates: 37.06790,-121.08100
Latest update: May 27, 2025 09:07
Henry W. Coe State Park
43.3 km
Pacheco Pass
10.4 km
Anderson Lake
46.4 km
Delta–Mendota Canal
4.5 km
Pacheco State Park
10.7 km
San Luis National Wildlife Refuge
29.4 km
Randall Fawcett House
23.1 km
San Juan Bautista State Historic Park
47.3 km
O'Neill Forebay
3.8 km
Sierra Azul Open Space Preserve
19.6 km
O'Neill Dam
3.3 km
Mount Sizer
41.7 km
Jose Castro House
47.4 km
Mount Stakes
40.6 km
Wings of History Museum
46.2 km
Old City Hall
43.9 km
Juan de Anza House
47.5 km
Church of St. Joseph
20.5 km
Hollister Carnegie Library
37.4 km
Bank of Los Banos Building
20.8 km
Rozas House
47.6 km
Gilroy Free Library
44.1 km
Benjamin Wilcox House
47.6 km
Edgar Holloway House
43.9 km
Marentis House
47.8 km
Guadalupe River Park & Gardens
43.3 km
North Beach
2.8 km
South Beach
2.4 kmReviews
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