The USS South Dakota (ACR-9/CA-9), later renamed Huron, was a Pennsylvania-class armored cruiser of the United States Navy. Constructed by Union Iron Works in San Francisco, her keel was laid on September 30, 1902, and she was launched on July 21, 1904. The ship was commissioned on January 27, 1908, with a hull and machinery cost totaling approximately $3.75 million. Her propulsion system consisted of vertical triple expansion engines powered by sixteen Babcock and Wilcox boilers, driving two propellers. She featured a distinctive silhouette with four funnels, a cage mast, and a military mast, and was equipped with a Type J submarine signal receiving set. South Dakota's initial shakedown began in March 1908, including trials off Magdalena Bay and Isla Cedros, where her movements contributed to navigational debates. She reached a speed of 22.24 knots during her trials. Her early service involved operations along the U.S. West Coast, including visits to San Diego, Long Beach, and San Francisco, and exercises in the Pacific Northwest, notably at Puget Sound. In September 1908, she arrived at Pago Pago, Samoa, and subsequently cruised in Central and South American waters, visiting the Admiralty Islands, the Philippines, Japan, and China. Throughout her career, South Dakota served with the Pacific Fleet’s Armored Cruiser Squadron and participated in various deployments, including a notable cruise to the Hawaiian Islands, the Marianas, the Philippines, and Japan in 1911-1912. After a period in reserve, she was recommissioned in April 1917 and transferred to the Atlantic theater during World War I, where she patrolled South Atlantic waters, escorted troop convoys, and made voyages between Brest and New York. In 1919, she became the flagship of the Asiatic Fleet, based in Manila, and was renamed Huron in 1920 to free her original name for a battleship. She operated primarily in Philippine waters and around China until she ran aground in 1925 but was refloated. Decommissioned in June 1927, Huron was struck from the Naval Vessel Register in November 1929 and sold for scrapping in 1930. Subsequently, she was repurposed as a floating breakwater in Powell River, British Columbia, where she sank during a storm in 1961. Her service record highlights her role in early 20th-century naval operations and her adaptability in maritime history.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.