The Challenger Mountains are a mountain range on Ellesmere Island in Nunavut, Canada.

The United States Range is immediately to the east of the Challenger Mountains.

The range lies within Quttinirpaaq National Park, the second most northerly park in the world after Northeast Greenland National Park in Greenland.

[2] Low elevation lakes located along Taconite Inlet are part of the Challenger Mountains and local relief exceeds 1,250 m (4,101 ft).

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