Kingman Reef, uninhabited reef, less than 1 sq mi (2.6 sq km), central Pacific, one of the Line Islands , 1,075 mi (1,730 km) SW of Honolulu. It was discovered by Americans in 1798 and annexed by the United States in 1922. At one time a stop on the air route from Honolulu to Pago Pago, Kingman Reef came under the jurisdiction of the U.S. navy in 1934, and since 2000 has been administered by the U.S. Department of the Interior. Since 2009 it has been part of the Pacific Remote Islands Marine National Monument .
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