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By David D. Alt

From the traditional sedimentary formations within the north during the overthrust belt within the southeast, Idaho's rocks are as fascinating as rocks come. The authors understand those rocks good via their years of analysis in Idaho, which resulted in their idea explaining the flood basalts of the Columbia Plateau and the hotspot song of the Snake River undeniable because the result of a huge meteorite effect that occurred approximately 17 million years in the past.

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