80 miles to Sisters. One up, and down. Go up and down. Pacific Coast Highway, riding west from Palisades to Malibu. Slides usually cover not only the shoulder but also part of the right lane.
Traffic is fast and heavy, with an attitude.
Michael Mysza BEST - Tunitas Creek from Highway 1 to Skyline. Second - West Alpine from Pescadero Rd. The loop from Silverado Trail to Howell Mtn road to Ink Grade, through Pope Valley, and back to Silverado Trail. Great variety and generally very little traffic. Several already mentioned.