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Deadly South Dakota Sinkhole And Its 61 Intact Mammoth Skeletons Is Older Than Thought

The world-famous Mammoth Site of Hot Springs, South Dakota, is older than scientists believed. A new scientific study revealed that the ancient sinkhole, containing dozens of intact mammoth skeletons, is between 160,000 and 232,000 years old.
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The famous Mammoth Site in South Dakota is much older than previously thought. Luminescence dates of the sediments point to an age of about 160,000 to 232,000 years instead of the previously assumed 23,000 to 42,000 years. Thus, the history of the mammoths enclosed there shifts far into earlier phases of the Pleistocene. Hot Springs (U.S.A.). Since its discovery in 1974, the Mammoth Site is considered an extraordinary window to the ice age of No…

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Cowboy State Daily broke the news on Sunday, September 13, 2026.
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