Please do not use GPS instructions when traveling to the South Entrance. Find directions here.
South Entrance and Marina (currently open) 9990 Los Vaqueros RoadByron, CA 94514925-371-2628
John Muir Interpretive Center (currently closed)19 Walnut BoulevardBrentwood, CA 94513925-240-2440
Watershed Office (currently closed)100 Walnut BoulevardBrentwood, CA 94513925-240-2360
Current Hours: 7 a.m. – 6 p.m.
Gates lock promptly at closing time. Citations will be issued for late departure. Call 925-688-8374 after hours.
Los Vaqueros is open every day, including holidays.
For special use permit assistance at Los Vaqueros, please call the Watershed Office at 925-240-2360.
Submit special use permit requests by mail to:
Contra Costa Water DistrictLos Vaqueros WatershedAttention Watershed ClerkP.O. Box H20Concord, CA 94524-2099