You won’t believe the story carved into the Three Graces rock formation, just north of Garibaldi on the Oregon coast. These towering basalt sea stacks are over 15 million years old, formed from ancient lava flows during the Miocene era! Even more shocking? Scientists estimate that erosion will eventually claim them, just like other sea stacks along the coast—so one day, they’ll disappear completely. For now, they stand as a breathtaking reminder of the Oregon Coast’s geological history.
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