Chart correction 49/23 — chart 11553

★11553  31Ed.  03/01/18  LAST  NM  38/23  49/23 Substitute Danger circle "Obstn" [K40] for depth 9 feet   35°47′03.0″N  76°01′31.9″W Add Danger circle "Obstn" [K40]   35°42′21.4″N  76°02′37.3″W Depth 9 feet Obstn [K41]   35°56′36.8″N  75°59′14.6″W (NOS)

Source: NGA U.S. Notice to Mariners · edition: 31Ed. 03/01/18

Reference information — always verify against official Notices to Mariners before navigation.