A graveyard of ancient ships off the Turkish coast near Bodrum, the most important being a Byzantine wreck of the 6th century. The 30-meter vessel was well-preserved and traces of the galley-end and of the cargo holds were found. Amphorae have illustrated trading of later Roman wares and olive oil between North Africa and Anatolia in the Justinian period. Peter Throckmorton, who discovered the site in 1958, developed the mapping of wrecks photogrammetrically with stereophotographs and using a two-man submarine, the Asherah launched in 1964. The Asherah was the first submarine ever built for archaeological investigation.