A line drawn from Charleston Light on Sullivans Island to latitude 32°40.7? N. longitude 79°42.9? W. (Charleston Lighted Whistle Buoy “2C”); thence to a point on Folly Island at latitude 32°41.0? N. longitude 79°53.2? W.

[USCG-2010-0759, 75 FR 60001, Sept. 29, 2010]