Midway Atoll (colloquial: Midway Islands; Hawaiian: Kauihelani, lit. 'the backbone of heaven'; Pihemanu, 'the loud din of birds') is a 2.4 sq mi (6.2 km2) atoll in the North Pacific Ocean. Midway Atoll is an insular area of the United States and is an unorganized and unincorporated territory. The largest island is Sand Island, which has housing and an airstrip. Immediately to the east of Sand Island across the narrow Brooks Channel is Eastern Island, which is uninhabited and no longer has any facilities. Forming a rough, incomplete circle around the two main islands and creating Midway Lagoon is Spit Island, a narrow reef. About 40 people live on the atoll, mostly staff of the U.S. Fish and Wildlife Service and contract workers. Visitation to the atoll is possible only for business reasons, which includes permanent and temporary staff, contractors, and volunteers, as the tourism program has been suspended due to budget cutbacks. In 2012, the last year that the visitor program was in operation, 332 people made the trip to Midway. Tours focused on both the unique ecology of Midway, as well as its military history. The economy is derived solely from governmental sources and tourist fees. Nearly all supplies must be brought to the island by ship or plane, although a hydroponic greenhouse and garden supply some fresh fruits and vegetables. (Source: Wikipedia.org, CC BY-SA)