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Yellowstone's volcanic ash found in South Dakota's Badlands links the two parks geologically.
Yellowstone National Park and South Dakota's Badlands National Park are geographically distant, but recent findings suggest a geological link.
Ash from the Yellowstone Super Volcano has been discovered in the Badlands' Brule Formation, indicating that volcanic material from Yellowstone reached this area long ago.
This evidence points to a historical volcanic connection between the two sites, despite their current separation.
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La ceniza volcánica de Yellowstone encontrada en las Badlands de Dakota del Sur une los dos parques geológicamente.