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Jefferson County

Keystone tunnel under the road

Highlight • Bridge

Keystone tunnel under the road

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by 1 explorers

This Highlight is in a protected area

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    Location: Jefferson County, Montana, United States

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    December 20, 2024

    Running

    Built in the 1930’s, the bridge was specifically built using this ancient technique in order to preserve the old way of building.

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    Best routes to Keystone tunnel under the road

    17

    runners

    1. Keystone tunnel under the road loop from Whitehall

    12.5km

    01:29

    460m

    460m

    Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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    Hard

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    Informations

    Elevation 1,490 m

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    Thursday 22 January

    -2°C

    -14°C

    0 %

    Additional weather tips

    Max wind speed: 9.0 km/h

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    Location: Jefferson County, Montana, United States

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