USS Loggerhead (SS-374) Fleet. In 1960 she was assigned as a US Naval Reserve Training Ship and towed to Portland, Oregon. In December 1962 she was reclassified an auxiliary submarine, AGSS-374, and she continued to serve as a reserve training submarine in Portland until 30 June 1967 when she was relieved by auxiliary submarine . Struck from the Naval Vessel Register on the same date, "Loggerhead" was sold for scrap in early 1969. USS Loggerhead (SS-374) USS "Loggerhead" (SS-374/AGSS-374), a "Balao"-class submarine, was a ship of the United States Navy named for the loggerhead, "Caretta caretta", a very large, carnivorous sea turtle common
Loggerhead Key done to provide the monkeys a place to breed, to supply the animals for medical research laboratory experiments. Around 1,322 of the monkeys existed on the island between 1987–1990. The Dry Tortugas Light is a lighthouse located on Loggerhead Key. It began operations in 1858 and was decommissioned in 2014. The Carnegie Marine Biological Laboratory, also referred to as the Tortugas Laboratory, was a marine biology laboratory and research facility constructed on the northern end of Loggerhead Key that operated from 1904 to 1939. It was constructed and operated by the Carnegie Institution of Washington. The Carnegie Marine Biological Laboratory