After her two-day 'run silent, run deep' routine, Mary Lee is frisking about on the surface, with five pings this morning as she cruises back and forth in short sprints. She has made her way well south of Bermuda, about 600 miles SSW, more or less. She is 550 miles east of Vero Beach, FL, out in the open Atlantic, over water that is 13,000 - 14,000 feet deep.
Update: as of the morning of 03.15.2013, Mary Lee has crossed over the Hatteras Abyss, which has depths in excess of 19,000 feet. She is angling toward the west northwest, approaching Blake Ridge and the Blake Plateau.