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See Pu’uwanawana Volcanic Cone, Kauai, Hawaii

More than 5 million years ago, a hotspot in the earth spewed lava upward to form the volcanic mountain island of Kaua`i. Nearby Ha`upu Ridge and Mountain contain some of the oldest geologic formations. Look for the youngest volcanic cones such as Pu`uwanawana, within view. Weathered volcanic material produced rich agricultural plains.
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