There are a few rounded domes here near Saugus (just NE of Boston), up to 40 ft tall. This is near Lynn Woods Reservation north of Boston. The climbs are generally low end difficulty. Much of this is fairly small and probably insignificant. It may not be worth your effort to find it.
Woodpecker, 8 Z Crack, 8
Heimerdinger, 2 S Curve, 3 Sarah’s Honey, 7
Go north on I-93 to US Hwy 1. Go north to Route 129 (short of Hwy 128)/I-95. Go West to Farm St. Head south to some high voltage power lines and park just short. Hike along powerlines Northeast about 100 yards.