クリス・バーカードのインスタグラム(chrisburkard) - 12月18日 08時24分

A sneak peak into Mount Okmok caldera. At 5.8 miles across this was at one time one of the largest Volcanos in the ring of fire. Now it sits as the largest caldera where leftover tendrils of lava carved a path for water to make its way to the ocean.

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