Chart correction 4020 — chart 1990
Chart 1990 [ previous update 2979/26 ] WGS84 DATUM Insert 13", Obstn (a) 39° 07´·0N., 9° 29´·7E. Delete depth, 30, close NW of: (a) above Wk35/26 II 2.21
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.