Deep Sea Detectives

Many ships carrying prospectors for the gold rush wreck along the California coast.

A freighter named the Edmund Fitzgerald and its 29-man crew disappeared beneath the stormy waters of Lake Superior on Nov. 10, 1975.

Marine archaeologists search for the wreck of the Portland, one of hundreds of ships sunk during 1898 Thanksgiving weekend storms off the coast of New England.

Divers explore the wreck of the Montana, a "mountain boat" built to carry passengers and freight West that sank on the Missouri River in 1884.

Remnants of an 18th-century Chinese opium trader turn up in California in 1984.

Mel Fisher locates treasure from the Nuestra Señora de la Atocha, a Spanish galleon that went down off the Florida Keys in 1622.

The Japanese midget sub that started World War II in the Pacific rests 1,200 feet under the waters outside Pearl Harbor.