I am pretty sure the finish is at Table Mountain which would be Mt High North? I would think Mt High West and East would be for all the spectator parking.
I am riding up from Cajon Junction to the first vista on Hwy 2 (by Blue Ridge Road) and then back to the finishing line. I might go down to Big Pines Hwy to the lake and back as I have never been over that side.
AMGEN Tour of California :: Spectator Guide
http://www.amgentourofcalifornia.com...rGuide2014.pdf