This is an image of the remains of an old schooner that sank near the Isles of Shoals (Duck Island) off the New Hampshire coast. The image shows the keel and a small part of the hull on either side of the keel. The remains measure 45 meters in length, 13 meters in width and approximately 1 meter in height off the sea bottom. This image was aquired on a sonar range of 100 meters and a towing speed of 7.6 knots