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First geological map of Yellowstone National Park stands test of time
Idaho Capital Sun   23 February 2023   USA  
This August 2016 photo shows the sunrise over Yellowstone Lake at the national park. (Neal Herbert/National Park Service)
<p>The volcanic character of Yellowstone has long been known. An indigenous map drawn on a bison pelt indicating a volcano on the Yellowstone River was described by the governor of Louisiana Territory in an 1805 letter to Thomas Jefferson.<br />The first formal ...