Livermore to Corral Hollow Road

Short ride with a decent climb (and descent).  The tailwinds while travelling east on County Hwy J2 can be very strong, making for some great speed with virtually no effort.  Those tailwinds, of course, turn into strong headwinds on the return trip, which reach their peak when you crest the pass 10 miles from the initial start.  Good for an afternoon get away when you want nothing but a chance to pump away in the middle of nowhere.