Chart correction 3972 — chart 2530

Chart 2530 [ previous update 3057/25 ] NAD83 DATUM Insert legend, NATIONAL MARINE SANCTUARY (see Note), centred on: 34° 35´·6N., 121° 14´·5W. 33° 55´·2N., 121° 08´·3W.

Source: UKHO Admiralty Notices to Mariners

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