Chart correction 687 — chart 4955

Chart 4955 [ previous update 4618/24 ] NAD83 DATUM Insert depth, 18, and extend 2m contour W to enclose 48° 57´·09N., 123° 29´·07W. depth, 13, enclosed by 2m contour (a) 48° 58´·70N., 123° 31´·98W. Delete depth, 3, close N of: (a) above

Source: UKHO Admiralty Notices to Mariners

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