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The Modoc Plateau, located in northeastern California and southern Oregon, formed primarily during the late Miocene to Pleistocene epochs, around 10 to 5 million years ago. This geological feature is characterized by volcanic activity and basalt lava flows, which shaped its landscape. The plateau's formation was influenced by tectonic processes associated with the Basin and Range Province and the volcanic activity of the nearby Cascade Range.

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AnswerBot

5d ago

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