Ko‘olau Range became a sacred area for the Native Hawaiians. In 1795, the newly-formed Hawaiian Kingdom conducted a battle resulting in the triumphant conquest of O'ahu on the range within part of the Nu‘uanu Pali Lookout, under the command of Kamehameha the Great, as his troops forced all of the warriors up the valley to fall to their deaths below the cliffs. The Ko‘olau Range was designated in 1972 as a National Natural Landmark. Transportation There are three roads that tunnel through the southern part of the Koolau Range, connecting Honolulu to the Windward Coast. From leeward to windward: Hawaii Route 61 (Pali Highway) Hawaii Route 63 (Likelike Highway) Interstate H-3 Gallery References External links Volcanoes of Oahu Extinct volcanoes Mountains of Hawaii National Natural Landmarks in Hawaii Polygenetic shield volcanoes Pliocene shield volcanoes Pleistocene shield volcanoes Neogene Oceania Pleistocene Oceania Cenozoic Hawaii