Chart correction 1917 — chart 4509

Chart 4509 (INT 509) [ previous update 1591/24 ] WGS84 DATUM Delete åObstn 29° 12´·2N., 125° 29´·4E. åWells 28° 37´·5N., 125° 10´·2E.

Source: UKHO Admiralty Notices to Mariners

Reference information — always verify against official Notices to Mariners before navigation.