Chart correction 3320 — chart 4222
Chart 4222 [ previous update 4986/23 ] WGS84 DATUM Insert the accompanying block, centred on: 20° 46´·9S., 70° 11´·9W. Wk31/25 II 2.31
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.