Chart correction 4254 — chart 1661
Chart 1661 (INT 1951) [ previous update 4043/23 ] WGS84 DATUM Insert ´ 20° 39´·5N., 17° 13´·9W. 20° 18´·4N., 17° 22´·4W.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.