Target off U and LaSalle.
Another two possibilities ENE of LaSalle Park.
Another possibility on the north tip of the martini glass shaped reef. Off Clar Lin Rd.
Another view.
My dad was doing some arial photography monday and got some GPS numbers for this image, according to my chart plotting software, it lies in about 18 feet of water. He also saw what looks like the remenants of the old Casco pier straight east of Alaska.