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Kohala Mountain Range

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Kohala Mountain Range
Kohala Mountain Range
Kohala Mountain Range
Kohala Mountain Range
Kohala Mountain Range
Kohala Mountain Range
Kohala Mountain Range
Kohala Mountain Range
Kohala Mountain Range
Kohala Mountain Range
Kohala Mountain Range
Kohala Mountain Range
Kohala Mountain Range
Kohala Mountain Range
Kohala Mountain Range
Address:
Kohala Mountain Rd., Island of Hawaii, HI

Kohala is the oldest of five volcanoes that make up the island of Hawaii. Kohala is an estimated one million years old—so old that it experienced, and recorded, the reversal of earth's magnetic field 780,000 years ago. It is believed to have breached sea level more than 500,000 years ago and to have last erupted 120,000 years ago. Kohala is 606 km2 in area and 14,000 km3 in volume, and thus constitutes just under 6% of the island of Hawaii.Kohala is a shield volcano cut by multiple deep gorges, which are the product of thousands of years of erosion. Unlike the typical symmetry of other Hawaiian volcanoes, Kohala is shaped like a foot. Toward the end of its shield-building stage 250,000 to 300,000 years ago, a landslide destroyed the northeast flank of the volcano, reducing its height by over 1,000 m and traveling 130 km across the sea floor. This huge landslide may be partially responsible for the volcano's foot-like shape. Marine fossils have been found on the flank of the volcano, far too high to have been deposited by standard ocean waves. Analysis indicated that the fossils had been deposited by a massive tsunami approximately 120,000 years ago. Because it is so far from the nearest major landmass, the ecosystem of Kohala has experienced the phenomenon of geographic isolation, resulting in an ecosystem radically different from that of other places. Invasive species introduced by man present a problem to Kohala's ecosystem, as they push native species out of their habitat. There are several initiatives to preserve Kohala's ecosystem. Crops, especially sweet potato , have been harvested on the Leeward side of the volcano for centuries as well. The northern part of the island is named after the mountain, with two districts named North and South Kohala. King Kamehameha I, the first King of the Kingdom of Hawaii, was born in North Kohala, near Hawi.
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