Chart correction 3994 — chart 1516

Chart 1516 [ previous update 3063/25 ] NAD83 DATUM Insert depth, 9, with seabed type, R (a) 42° 18´·93N., 70° 52´·90W. Delete depth, 10, close SW of: (a) above Insert depth, 15, with seabed type, R and extend 18ft contour N to enclose 42° 19´·71N., 70° 53´·21W. depth, 6, with seabed type, R and extend 6ft contour E to enclose (b) 42° 19´·93N., 70° 53´·30W. Delete depth, 6, close NE of: (b) above Insert depth, 3 (c) 42° 21´·02N., 70° 54´·46W. Delete depth, 5, close SE of: (c) above Insert depth, 16, with seabed type, R and extend 18ft contour SE to enclose 42° 20´·73N., 70° 55´·54W. depth, 12, with seabed type, R and extend 18ft contour NE to enclose (d) 42° 21´·49N., 70° 56´·52W. Delete depth, 19, close SE of: (d) above Insert 7+ Obstn 42° 20´·88N., 70° 58´·97W.

Source: UKHO Admiralty Notices to Mariners

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