Update on the Loss of the Argentine Submarine ARA SAN JUAN
The following from the linked site: "Throughout the marathon session, Argentine Defense minister Aguad said that the government would not rest until it found the submarine, but noted that it was most likely that the San Juan had come to rest in an undersea canyon, with depths of up to 3,000 meters."
Comment: Numerous deep canyons traverse the search area. They are oriented west to east.