This boundary "includes all lands from the Mexican border to Monterey, from the coast to the desert or Central Valley, with the eastern boundary extending 5 miles east of the National Forests as a smoothed line. It includes all 4 National Forests, has ecological and wildfire risk similarity throughout, was used to calculate the percentage of human-caused ignitions for the SCIRP charter, and was the bounding shape for the Vibrant Planet modeling of ignition reduction."- Jeff Heys, Acting Palomar District Ranger, Wildfire Risk Reduction Program Manager
