Potrero County Park 
24800 Potrero Park Drive
Potrero, CA 92063
619-478-5212
http://www.co.san-diego.ca.us/parks/Camping/potrero.html
Park: Camp, Hike, Picnic, Walk
Potrero County Park, 45 miles east of San Diego, is in a broad valley dotted by coastal live oaks. Its grassy meadow and rocky hillsides provide quiet solitude for hikers and campers, and picnickers will enjoy the shade of hundred-year-old oak trees.