Underwater cable laid

Depth contour line. This one is the 30 ft depth contour line.

Green area. Drys at low tide.

Latitude. Each minute of latitude represents exactly 1 nautical mile.

Dangerous rocks (+ with dotted circle) plus a small island 10 ft high. Blue area is 5 ft deep. Bottom is rock (Rk).

General Anchoring Area. You will probably see large ships anchored here.

New London Ledge Lighthouse flashes 3 white then 1 red every 30 seconds. It is 58 feet high and can be seen for 14 nautical miles. It also sounds a horn.

The bottom is 67 feet deep and the bottom is Sand and shale.

Channel markers. One Green labelled "3" flashing green every 4 sec plus a Red Nunn labelled "4". In the center the depth rises up to 36 feet. To the east a little it is 7 feet deep marked by a tower.

The Light house produces a red sector to keep boaters of the reef.

Here there is a green lighted buoy labeled "1" flashing green every 2.5 sec and a red lighted buoy labeled "2" flashing red every 2.5 sec