San Francisco Bay Area: Berkeley: Tilden Park. Wildcat Canyon Road, start at top of Spruce Avenue and ski to Inspiration Point. For extra miles, take the bike path (some steeper narrower hills) from Inspiration Point North. M.D.
The Presidio, near Golden Gate Park. (Old Military Installation.) Bring your speed reducers. –B.T.
Peninsula (Bay Area ): Kings Mountain Rd, Page Mill Rd, early AM when traffic is going in the other way. Spot car at top. 1500 – 2000 vertical.
* Canada Rd. on Sundays (closed to cars)
* Woodside / Portola Valley
* Golden Gate Park (SF) on Sundays when roads are closed. – B.T.