Thank you very much for the story. I know the area very well, having done extensive bicycling as a UCLA student (1968-78). I loved Mulholland Drive, from the Griffith Park area all the way west. With Velo Club LaGrange I did a number of NIchols Cyn -> Mulholland Dr -> Benedict Cyn loops. On my own or with a couple of my buds, I explored the canyons of Brentwood, where I had lived before high school, Bel-Air, and Pacific Palisades, as well as the Malibu climbs: Topanga Cyn, Stunt Rd, Tuna Cyn, Latigo Cyn, etc, I always did my solo rides early in the morning, leaving the west Los Angeles / greater Westwood area at first light, to avoid issues with heat, which is something I have never handled well, as a lifelong coastal Southern California "weather wimp."