CFR / 
Title 46
 / Part 7
 / 
Sec. 7.75 Savannah River/Tybee Roads.
A line drawn from the southwesternmost extremity of Braddock Point to latitude 3158.3 N. longitude 8044.1 W. (Tybee Lighted Whistle Buoy ``T''); thence to the southeasternmost extremity of Little Tybee Island bearing approximately 269 true.