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Bryce Amphitheater, Bryce Canyon National Park, Utah, USA | Bryce Canyon National Park - Utah, USA (IMG_6671.jpg)

Bryce Amphitheater, Bryce Canyon National Park, Utah, USA

Hoodoos are formed by two weathering processes that continuously work together in eroding the edges of the Paunsaugunt Plateau. The primary weathering force at Bryce Canyon is frost wedging. Here we experience over 200 freeze/thaw cycles each year. In the winter, melting snow, in the form of water, seeps into the cracks and freezes at night. When water freezes it expands by almost 10%, bit by bit prying open cracks, making them ever wider in the same way a pothole forms in a paved road.
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