Chart correction 21/22 — chart 11510
★11510 20Ed. 09/01/07 LAST NM 16/22 21/22 Relocate Buoy "4" from 31°21′55″N 81°14′00″W to 31°21′51″N 81°14′11″W (See 16/22) (16/22 CG7)
Source: NGA U.S. Notice to Mariners · edition: 20Ed. 09/01/07
Reference information — always verify against official Notices to Mariners before navigation.