1.4 hr
One of the largest petrified forests on the planet sits in the center of Washington State. The ancient trees were mineralized into rock during the great lava flows that swept the inland Northwest. In addition to petrified ginkgos (one of the oldest tree species in the world), the "rock forest" includes mineralized Douglas fir, spruce, walnut, and elm.
Petrified Maple Log. Photo by wafflesnfalafel. Full-size image
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