Old Briones Road>Black Oak Trail>Mott Peak Trail
From the Bear Creek parking lot, take old Old Briones Road northeast and turn left on Black Oak Trail -- an old wagon road. It gets quite steep in the first quarter-mile, so watch your footing on the way up.
Black Oak Trail crests on a ridge and keeps ascending till its end at Mott Peak Peak Trail. Bear right here and keep climbing. You'll endure a fair amount of slogging along the way, but the panoramic views in every direction should ease your suffering.