I believe the ACA maps will mention them--most cyclists doing the US Pacific coast route come to depend on them. You can go to the California State Parks page and search for the parks that offer them by Activity/Facility: http://www.parks.ca.gov/ParkIndex/

This show most, but not all, of the parks that have the program.

I've also added sites that I've stayed at to this site: http://www.biketouringtips.com/searc...ping&subtopic=

Hey, here's a small town in Montana that built their own little bike-only campground on the ACA TA route a few years ago--they asked for suggestions on a thread here on bikeforums, and now here's a video from a user: http://www.youtube.com/watch?v=85etYUg6CaY

http://www.adventurecycling.org/adve...ays-dividends/

It would be nice if other folks would pool their knowledge and add to this site if they know of any local bike campsites.