Kingman Reef /ˈkɪŋmən/ is a largely submerged, uninhabited, triangle-shaped reef, geologically an atoll, 9.0 nmi (20 km) east-west and 4.5 nmi (8 km) north-south, in the North Pacific Ocean, roughly halfway between the Hawaiian Islands and American Samoa. It has an area of 3 hectares (0.03 km2; 7.4 acres) and is one of the unincorporated territories of the United States in Oceania. The reef is administered by the United States Fish and Wildlife Service as the Kingman Reef National Wildlife Refuge. It is the northernmost of the Northern Line Islands and lies 36 nautical miles (67 km) northwest of the next closest island (Palmyra Atoll), and 930 nautical miles (1,720 km) south of Honolulu. The reef encloses a lagoon up to 53 fathoms (318 ft; 97 m) deep in its eastern part near the northeastern spit of land. The total area within the outer rim of the reef is 20 sq nmi (70 km2). There are two small strips (spits) of dry land composed of coral rubble and giant clamshells on the eastern rim with areas of 2 and 1 acre (0.8 and 0.4 ha) having a coastline of 2 miles (3 km), a short spit on the northeast side of the lagoon and a spit twice as long but thinner on its south side. The highest point on the reef is less than 5 feet (1.5 m) above sea level, which is wet or awash most of the time, making Kingman Reef a maritime hazard. It has no natural resources and supports no economic activity. (Source: Wikipedia.org, CC BY-SA)