The Pacific Crest Trail runs 2,663.5 miles from the Mexican border to British Columbia, Canada. This is the southernmost section of the Pacific Crest Trail (PCT), and the section descriptions listed here on Tripleblaze will be lettered in a south-to-north fashion, as is done in the official PCT guidebooks. The Google Maps locations given here on the Tripleblaze will be for the southern tip of the section in question, whenever possible.
California
http://www.tripleblaze.com/trail.php?c=3&i=3239