This wall is up to 15 foot tall. Charlesgate is located near the overpass linking Storrow Dr and Park Dr.
L->R: A. Break from School, 9 B. Hocus Pocus, 8 C. Mumbo Jumbo, 8 D. Abracadabra, 8
E. The Nose, 9 F. Wall Of The Early Morning Fright, 19 G. The NA, 10
Apparently, there is a overhanging retaining wall for the overpass with a couple routes.