The backsides of these domes are obvious from any formation on the east side of the HWY 120, i.e. Drug Dome. My best suggestion is to find the pond from the middle of the mentioned paved pullout (guidebook). Watch out for the mud bogs. Take a straight line through the woods perpendicular to the Hwy and slightly up rolling hills and sometimes thick forest. One trick is to keep looking back to make sure Mariuolumne Dome is always behind your back. Depending on which trail you pick up you will either find the North or South dome first. Good luck!