p1080723

Published October 4, 2016 at 640 × 361 in Time travel in west Texas

Rhyolite porphyry in fantastic shapes from volcanoes 35 million years ago

Rhyolite porphyry in fantastic shapes from volcanoes 35 million years ago

Rhyolite porphyry in fantastic shapes from volcanoes 35 million years ago

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