PPS: for those other boulder hunters out there, and for my own records, here is a drainage i checked out that looked promising but yielded no good boulders (some very mossy 25-40' cliffs. not worth exploring more:
parked at W 122 34.972' N 37 54.943'
walked up the drainage all the way to: W 122 35.000' N 37 55.050'
Better directions to the Rocky Road Boulder: From Rock Springs, turn right onto East Ridgecrest and drive 0.4 miles to the large dirt parking lot on the right. The boulder borders the parking area. The GPS coordinates for the boulder are parked at W 122 36.515' N 37 54.879'
heres a vid of the classic old school roadside Mt Tam boulder nicknamed the Rocky Road or the Camel Pie Boulder but has also been called the Parking Lot Boulder since it is right next to the big dirt parking lot on the side of East Ridgecrest just east of Rock Springs. i might have gotten the second ascent of "Camel Pie Traverse" V6/7 after Russ Bobzien first did it about 20 years ago. this vid is from the V5/6 start. the midway start is a fun V3/4 and the direct highball line up the center of the main face is about V0/1R but also has a few sit starts and variations up to about V4/5 - all good roadside fun!!
*East Bloc/ATF Boulder + Bay View Boulder (on right/south side below road and small turnout with view of bay) + East Bloc/ATF Boulder (on left/north side across from turnout in the trees just up the hill - 1 min [about 0.9 miles east of Rock Springs on East Ridgecrest]
*Lakeview Boulders - off Lakeview Trail which is on East Ridgecrest just west of the East Peak. Hike the trail to the north/east to the trailside boulder that has a few problems then hike downhill to the rest from there!