Chart correction 30/21 — chart 83021

83021 1Ed. 10/3/81 LAST NM 50/10 30/21 Add Depth 780 meters, blue tint and enclosing depth contour (1000-meter) centered 17°25.6′S 149°46.4′W Depth 981 meters, blue tint and enclosing depth contour (1000-meter) centered 17°27.5′S 149°42.5′W (16(55)08 Brest)

Source: NGA U.S. Notice to Mariners · edition: 1Ed. 10/3/81

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