| − | Oahu has a total area of 607.7 square miles, of which 112 miles are coastline. The island is surrounded by the [[Pacific Ocean]]. There are two mountain ranges on the island, Koolau Range in the east and Waianae Range in the west. Between the two mountains is a valley and farmland in which crops are grown, mostly [[pineapple]] and sugar cane. [[Diamond Head]], a 760 ft extinct volcanic crater is located at the southeastern end of the island. <ref> http://www.netstate.com/states/geography/hi_geography.htm </ref> | + | Oahu has a total area of 607.7 square miles, with 112 miles of coastline. The island is surrounded by the [[Pacific Ocean]]. There are two mountain ranges on the island, Koolau Range in the east and Waianae Range in the west. Between the two mountains is a valley and farmland in which crops are grown, mostly [[pineapple]] and sugar cane. [[Diamond Head]], a 760 ft extinct volcanic crater is located at the southeastern end of the island. <ref> http://www.netstate.com/states/geography/hi_geography.htm </ref> |