Chart correction 331 — chart 1537
Chart 1537 [ previous update 4578/23 ] CGCS 2000 DATUM Insert depth, 94, and extend 10 m contour W to enclose 21° 29´·72N., 111° 31´·81E. 20m contour, joining: (a) 21° 23´·19N., 111° 26´·13E. (b) 21° 24´·23N., 111° 29´·97E. Delete former 20m contour, joining: (a)-(b) above
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.