SCIENTIFIC MOORINGS - Acoustic sensors, consisting of a concrete anchor and tethered instrument package floating above the anchor, are positioned approximately 0.8 kilometers / 0.5 miles apart along the line. Instruments in water less than 149.9 meters / 82 fathoms deep are within 5.4 meters / 3 fathoms of the seabed. Instruments in water more than 149.9 meters / 82 fathoms deep are approximately 149.9 meters / 82 fathoms below the surface.

For Canadian Firing Practice and Exercise Areas, see Canadian Notice to Mariners No. 35 of each year. Lighted and unlighted buoys are randomly located within these areas. These buoys are not charted. 