North Americas oldest mountain range

asked Aug 24, 2020 73.0k views

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Answer: North America’s oldest mountain range is the Black Hills range

Explanation: It formed about 1.75 billion years ago

Phazor answered Aug 27, 2020

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3 votes

Answer:

The Black Hills are the oldest mountain range

Fwind answered Aug 27, 2020

by Fwind

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