This circuit takes its name from the Grumbach river, also called Petite Largue, which originates in Bendorf and joins the Largue 12 km later, at Seppois-le-Haut. The route partly follows this watercourse and thus benefits from the coolness provided by the shade of the trees.
Source: Office de tourisme du Sundgau
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<p><a class="routeYou_embed" href="https://app.routeyou.com/en-fr/route/view/19060370?utm_source=embed&utm_medium=article&utm_campaign=routeshare&navigation=external" title="Mountain bike trail No. 9: Grumbach Circuit - RouteYou" target="_blank"><img src="https://image.routeyou.com/embed/route/960x670/19060370-en@2x.png" style="width: 100%; height: auto;" alt="Mountain bike trail No. 9: Grumbach Circuit"></a></p>
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Office de tourisme du Sundgau
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