A line drawn from latitude 42°37.9′ N. longitude 70°31.2′ W. (Cape Ann Lighted Whistle Buoy “2”) to latitude 42°22.7′ N. longitude 70°47.0′ W. (Boston Lighted Horn Buoy “B”); thence to Race Point Light.
source: CGD 81-058, 50 FR 25230, June 18, 1985, unless otherwise noted.
cite as: 46 CFR 7.15