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Hawaii Travel --> Islands --> Oahu --> Attractions --> Mountains --> Koolau Mountain Range

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Koolau Mountain Range
Oahu, Hawaii

Information about the Koolau Mountain Range on the eastern side of the island of Oahu in Hawaii.

Koolau Mountains on Oahu

The island of Oahu was formed by two volcanoes, the Waianae Volcano in the west and the Koolau Volcano in the east. The Waianae Volcano formed the western third of Oahu and the Koolau Volcano formed the eastern two thirds of the island.

The Koolau Volcano began forming a few million years after the Waianae Volcano, forming a separate island a few miles to the east of Waianae. The two volcanoes continued erupting until they gradually filled the ocean between them with land and became one island. After the Waianae Volcano became dormant lava flows from the Koolau volcano formed the Schofield Plateau between them. Cinder cones, tuff rings and spatter cones from the Koolau Volcano formed some of Oahu's most well-known landmarks including Diamond Head Crater, Hanauma Bay, Koko Head, Koko Crater, Punchbowl Crater, and Mount Tantalus.

The Koolau Mountain Range is about 37 miles long and its highest peak rises to 3150 feet.

Hiking Trails in the Koolau Mountains

Makapuu to Kailua Koolau Hiking Trails

Kalihi to Mililani Koolau Hiking Trails

Kaneohe to Kualoa Koolau Hiking Trails

Wahiawa to Pupukea Koolau Hiking Trails

Kaaawa to Kahuku Koolau Hiking Trails

See also: