It has been described as the ‘holy grail’ of shipwrecks containing one of the most valuable hauls of treasure ever lost at sea.
Named the San Jose, the 18th-century Spanish galleon was found three years ago off the coast of Colombia.
Now new details have emerged about the discovery of the shipwreck, which contains £12.6 billion ($17 billion) worth of treasure.
According to the Woods Hole Oceanographic Institution (WHOI), the San Jose was located by an underwater autonomous robot.
The REMUS 6000 – which also helped find the wreckage of Air France 447 in 2011 – used sonar to find the San Jose in more than 2,000 feet (600 metres) of water.
The institution said it was keeping its involvement in the discovery quiet out of respect for the Colombian government.
The exact location of the shipwreck currently remains a secret due to a legal dispute regarding who owns the wealth of treasures on board.
The 62-gun, three-masted galleon, went down on June 8, 1708, with 600 people on board as well as a treasure of gold, silver and emeralds during a battle with British ships in the War of Spanish Succession.
The San Jose was transporting the booty back to Spain to help finance its war of succession against Britain.
The ship was found submerged off the coast of Baru in what is now Colombia, near the Rosario Islands.