Chart correction 12 71 — chart 7752
21 12 71. PORTUGAL. Approches de Porto. — Épave. (Lisboa, 230/20). – Carte 7752 (17) INT 1810 Porter 93, Wk 41 01,5 N 009 01,6 W
Source: Service Hydrographique et Océanographique de la Marine · edition: 17
Reference information — always verify against official Notices to Mariners before navigation.