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Challenger Mountain

Challenger Mountain

Challenger Mountain is a hollowed out mountain that is the secret headquarters of the Challenges of the Unknown. Located in the Colorado Rockies.

Name:
Challenger Mountain
Aliases:
Start year:
1976
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No description

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December 1976

May 1977

July 1977

September 1977

November 1977

January 1978

March 1978

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November 1985

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January 2022

March 2024

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1958

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