Chart correction N52/21 — chart 37120
37120 4Ed. 09/19/15 LAST NM N50/21 N52/21 Delete Foul ground symbol 51°09.3′N 1°33.9′E Anchorage symbol 50°59.2′N 1°02.6′E Substitute Depth 36 meters Wk [K26] for swept depth 34 meters Wk 50°57.9′N 1°23.1′E Add Depth 9.7 meters 51°08.9′N 1°28.7′E and extend depth contour (10-meter) SW to enclose (21(2517)19 Taunton; 44(33)21 Brest; UKHO ARCS 1828-0, 1892-0)
Source: NGA U.S. Notice to Mariners · edition: 4Ed. 09/19/15
Reference information — always verify against official Notices to Mariners before navigation.