Chart correction N20/23 — chart 94217

94217   7Ed.  08/04/12  LAST  NM  N19/23  N20/23 Add Depth 1.6 meters, blue tint, and enclosing depth contour (2-meter) centered   31°23′35.4″N  121°35′48.6″E (See N51/20) (CHN CH 13179)

Source: NGA U.S. Notice to Mariners · edition: 7Ed. 08/04/12

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