I created this plan for all the geology and geography fans. This is a flight from KBWC, Brawley Municipal, to KACV, Humboldt County. It follows, as close as I can get, the San Andreas Fault from the Salton Sea to just south of Cape Mendocino using the available navigation aids of FS2020.
The route is 685nm, and I suggest you use a cruise altitude of 10000 feet, or 9500 feet if you want some close shaves with the Southern California mountains.
KBWC-SAN-ANDREAS-KACV.pln (12.1 KB)
EDIT. As a bonus, here’s a USGS KMZ file for Google Earth that I used to guide myself along the fault to find Navaids.