Earlier this month I took Bitterwater Road and Bitterwater Valley Road over the Temblor Range to CA 46/CA 33 at Blackwell's Corner. Both Bitterwater Road and Bitterwater Valley Road are rural highways that interact with the San Andreas Fault within the remote outskirts on the San Luis Obispo County/Kern County Line.
https://www.gribblenation.org/2020/06/bitterwater-road-and-bitterwater-valley.html