Well, For XC, there is poly canyon, shooters, morning glory, rollercoasters, among other things. Here's a good link: http://mountainbikeslocounty.com/ For the DH, we have Tower trail, in San luis Obispo (google it) which requires you do a pretty horrible HAB (but it's worth it) I haven't done it in a while, and one of the most well known entrances has been built over (behind the high school). but there is another HAB entrance at the end of Sydney road, it looks good on google earth, but i havn't confirmed it in person. You need to bring you big brass balls for tower, cause it's probably the steepest/rockiest thing your Gonna ride. At the bottom of Tower, there is a pretty good set of dirt jumps and a "road gap" Tower Trail: http://www.youtube.com/watch?v=CbLQSOkUAbo The Road Gap: http://www.youtube.com/watch?v=8r1VVEml3hE The Jumps: http://www.youtube.com/watch?v=Yi3bXq8zdEM There is also Rock Garden Trail on Madonna Mountain (Cerro San Luis)
