A historical flight (route) awaits at https://flight-sim.org/filebase/index…san-francisco/:
QuoteStarting at Reno you follow the old Transcontinental Airway System of 1924 to San Francisco. Your waypoints are placed on historical U.S. Airmail Beacons. Some of these are still visible today, consisting of a tower and a giant concrete arrow.
See also https://en.wikipedia.org/wiki/Transcontinental_Airway_System and http://www.dreamsmithphotos.com/arrow/airmail_….html#oakairbcn
The beacons are mostly gone, but in some places you will see radio antennas which will guide you along. As usual you may want to change the plane before departing.