Nuestra Señora de Atocha

Nuestra Señora de Atocha ("Our Lady of Atocha") was the most famous of a fleet of Spanish ships that sank in 1622 off the Florida Keys while carrying copper, silver, gold, tobacco, gems, jewels and indigo from Spanish ports at Cartagena and Porto Bello in New Granada (current Colombia and Panama, respectively) and Havana bound for Spain. The ship was named for the parish of Atocha in Madrid.

An unfortunate series of complications kept the Atocha in Veracruz before she could rendezvous in Havana with the vessels of the Tierra Firme (Mainland) Fleet. The treasure arriving by mule to Panama City was so immense that summer in 1622 that it took 2 months to record and load the precious cargo on the Atocha. After still more delays in Havana, what was ultimately a 28-ship convoy did not manage to depart for Spain until 4 September 1622, six weeks behind schedule.

On 6 September, the Atocha was driven by a severe hurricane onto the coral reefs near the Dry Tortugas, about 35 miles (56 kilometers) west of Key West. With her hull badly damaged, the vessel quickly sank, drowning everyone on board except for three sailors and two slaves.