city, Honolulu county, central Oahu island, Hawaii, U.S. Lying 22 miles (35 km) northwest of Honolulu, it is situated on the 1,000-foot- (300-metre-) high Leilehua Plateau between the two forks of the Kaukonahua Stream. The area was once used as a training ground for Oahu warriors, and from at least the 14th century it was considered a sacred place where royal mothers went to give birth to ensure the status of their children; Kukaniloko Birthstones State Monument marks the location of this ancient site. Founded in 1898, the city of Wahiawa (Hawaiian: “Place of Noise”) is a commercial centre for nearby plantation communities and military installations (Schofield Barracks and Wheeler Army Airfield). Pineapples are the area's leading crop. Popular tourist sites include the 27-acre (11-hectare) Wahiawa Botanical Garden and the Dole Pineapple Pavilion, which features a pineapple garden maze and a garden with several varieties of pineapples. Pop. (1990) 17,386; (2000) 16,151.