Interactive Visitor Map - Great map of trails and other useful info
Camping BLM - Camping on public lands away from developed recreation facilities is referred to as dispersed camping.
Dispersed Camping In California - The areas where you are allowed to camp are indicated by the green polygons for national forests, and by yellow polygons for BLM land.
Avenza Mobile App is available as a free download from AppStore or Google Play. Use your device’s built-in GPS to track your location
Department of Transportation is a caltran map
CalTrans Cameras Video