Chart correction 47/21 — chart 12261
★12261 31Ed. 01/01/17 LAST NM 25/18 47/21 Substitute Light Fl W 4s 15ft 7M for buoy 38°12′09″N 75°59′13″W (40/21 CG5)
Source: NGA U.S. Notice to Mariners · edition: 31Ed. 01/01/17
Reference information — always verify against official Notices to Mariners before navigation.