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Hells Canyon's Rapid Formation Dated to 2.1 Million Years Ago
A new study using cave sediment dating determined that Hells Canyon, the deepest gorge in the US, formed approximately 2.1 million years ago due to a massive lake overflow in Idaho, making it younger than the Grand Canyon.
Hells Canyon's Rapid Formation Dated to 2.1 Million Years Ago
A new study using cave sediment dating determined that Hells Canyon, the deepest gorge in the US, formed approximately 2.1 million years ago due to a massive lake overflow in Idaho, making it younger than the Grand Canyon.
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