The Ionia Volcano (also referred to as Burnt Bluff or Volcano Hill) is a heat-producing bluff located east of Newcastle, Nebraska, although it has commonly been mistaken for an active volcano. The site was considered sacred by the Ponca and Arapaho Native American Tribes, and was documented by William Clark on the Lewis and Clark Expedition.
The Ionia Volcano (also referred to as Burnt Bluff or Volcano Hill) is a heat-producing bluff located east of Newcastle, Nebraska, although it has commonly been mistaken for an active volcano. The site was considered sacred by the Ponca and Arapaho Native American Tribes, and was documented by William Clark on the Lewis and Clark Expedition.
Source: Wikipedia "Ionia Volcano" · CC BY-SA 4.0
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