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  1. 3rd hiker dies in Grand Canyon in last 3 weeks

    3rd hiker dies in Grand Canyon in last 3 weeks

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  2. The Grand Canyon's Hidden Depths: Secrets of a Lost Egyptian City and Beyond

    The Grand Canyon's Hidden Depths: Secrets of a Lost Egyptian City and Beyond

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  5. Mystery Solved! Mars' GRAND CANYON Sized SCAR Explained (MUST SEE!)

    Mystery Solved! Mars' GRAND CANYON Sized SCAR Explained (MUST SEE!)

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  6. THE ANCIENT EGYPTIAN CITY FOUND IN THE GRAND CANYON IN 1908

    THE ANCIENT EGYPTIAN CITY FOUND IN THE GRAND CANYON IN 1908

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  7. Scientists investigate mysterious giant scar stretching across Mars

    Scientists investigate mysterious giant scar stretching across Mars

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