Chart correction 4721 — chart 2128
Chart 2128 (Panel B, Portovyy Punkt Severo-Kuril'sk) [ previous update 274/24 ] UNDETERMINED DATUM Insert symbol, quarantine anchorage 50° 41´·71N., 156° 08´·50E.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.