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Sci Ch - What on Earth Series 10 (2021) Part 3 Mystery of Apache Mountain (2021)

What on Earth Series 10 Part 3 Mystery of Apache Mountain (2021)

Satellite images capture mysterious stone structures spread across high elevations of the Arizona Mountains; experts investigate and uncover ruins of a 19th century Apache fortification linked to the most treacherous migrant route in U.S. history.

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