Chart correction 2091 — chart 497
Chart 497 (Panel B, Yarimca to İzmit) [ previous update 1555/23 ] WGS84 DATUM Insert the accompanying block, centred on: 40° 43´·0N., 29° 53´·6E.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.