Chart correction 51/21 — chart 11547
★11547 40Ed. 07/01/15 LAST NM 50/21 51/21 Change Rear range light to Iso W 6s 40ft, Iso W 6s 15ft 4M 34°42′11.8″N 76°40′25.5″W Front range light to QW 25ft, QW 13ft 4M 34°42′04.9″N 76°40′22.5″W (See 15/20) (45/21 CG5; USCG LL)
Source: NGA U.S. Notice to Mariners · edition: 40Ed. 07/01/15
Reference information — always verify against official Notices to Mariners before navigation.