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Switzerland
Espace Mittelland
District de Porrentruy
Haute-Ajoie

Trou du Creugenat Karst Sinkhole

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Trou du Creugenat Karst Sinkhole

Recommended by 3 hikers

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    Best Hikes to Trou du Creugenat Karst Sinkhole

    4.0

    (2)

    3

    hikers

    1. Circuit des dinosaures — loop from Courtedoux

    13.5km

    03:46

    240m

    250m

    Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.

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    Moderate

    Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

    Moderate

    1

    hikers

    Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

    Moderate

    Tips

    April 25, 2021

    The Trou du Creugenat is a karst hole in the Ajoie from which water emerges and which creates a temporary river, the Creugenat, during floods. The periodic lake forms between 4 and 10 times per year, the river is sometimes only visible for a few hours, sometimes over a week. The flow can reach 15 to 20 m3/s.
    The water follows the Courtedoux plain and flows into the Allaine at Porrentruy.

    When dry, the depth of the hole is clearly visible - simple steps lead to the bottom, and a thick rope helps you climb up or down. There is a water level gauge on the side of the rock walls and you can clearly see the mud traces of the last floods.


    In the immediate vicinity of the hole there is also a picnic area with a table and benches, as well as an improvised fire pit.

    A meadow path leads from the bike path to the hole.

    Translated by Google •

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      Elevation 450 m

      Weather

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      Sunday 16 November

      13°C

      8°C

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      Max wind speed: 8.0 km/h

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      Location: Haute-Ajoie, District de Porrentruy, Espace Mittelland, Switzerland

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