Chart correction N17/23 — chart 57161

57161   5Ed.  01/16/10  LAST  NM  N09/23  N17/23 Delete Mooring buoy   4°03′44″N  9°41′37″E (Plan) Delete Berth designation "17"   4°02′21.4″N  9°40′33.7″E Mooring buoy   4°03′43.8″N  9°41′37.6″E (See N09/23) Add Berth designation "17" [F19.1]   4°02′26.3″N  9°40′35.2″E (13(170)23 Brest)

Source: NGA U.S. Notice to Mariners · edition: 5Ed. 01/16/10

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