"Tortugas" shipwreck site
A Spanish colonial shipwreck from the 1622 fleet discovered approximately 1500 feet deep near the Dry Tortugas was the first ever deep-ocean remotely-operated archaeological excavation of a Spanish colonial shipwreck. Nearly 17,000 artifacts - some as small as seeds and pearls - were recovered from the shipwreck site during the 1990-1991 excavation.