Crystal Belt Boulder is a nice, aesthetic boulder a bit away from the bulk of Rocky Pond's climbing but close to the Barrel Boulder. It has a stark signifying band of quartz that wraps around almost the whole boulder. This is a pretty beautiful feature with some decent climbs on the boulder too, some of which yet to be done.
Hike out the logging road, and stay right to travel up the steep hill as you would for the Barrel Boulder. Continue another 100 meters after the hill levels out, staying right (where you would go left to go downhill to the Barrel Boulder), and follow this logging path that curves gradually to the left. Keep an eye out to the right of the trail to see the boulder about 30 meters away from the logging path.
The pin should be pretty spot on.