Chart correction 46/21 — chart 22281
22281 10Ed. 04/01/06 LAST NM 44/21 46/21 Delete Depth 883 meters 30°03′49″S 71°40′00″W Depth 1010 meters 30°00′03″S 71°37′41″W Add Depth 766 meters 30°03′16″S 71°40′33″W and extend approximate depth contour (1000-meter) NW to enclose Depth 550 meters 30°00′01″S 71°37′10″W and extend approximate depth contour (1000-meter) W to enclose (CHL CH 4100) SECTION I NM 46/21 I-1.5
Source: NGA U.S. Notice to Mariners · edition: 10Ed. 04/01/06
Reference information — always verify against official Notices to Mariners before navigation.