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Ourthe Trail – Isbelle Karst Spring loop from Hotton

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Hiking trails & Routes

Ourthe Trail – Isbelle Karst Spring loop from Hotton

Moderate

4.7

(194)

681

hikers

Ourthe Trail – Isbelle Karst Spring loop from Hotton

02:53

10.3km

190m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: May 13, 2026

Waypoints

Start point

Bus stop

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969 m

Faber Watermill

Highlight • Monument

This water mill for grinding grain still functions just for the pleasure of the visitors.

This Hotton watermill from 1729 gives us the true feeling of a bygone era. It was built along a watercourse, a second tributary of the Ourthe, which gave rise to an island (l'île d'Oneux) in the heart of the place.
At that time it was a communal mill and the inhabitants were obliged to grind their grain in the mill of the Lordship. This obligation was accompanied by a tax called "milling dues" and was proportional to the amount of milled grain. The mill was functional until the early 1960s and bears the name of its last owner, Mr Lucien Faber, whose wish was to open the mill to the public. She became the property of the Hotton Municipality in 1989.
luxembourg-belge.be/diffusio/nl/do-see/visit/casteel-monument/hotton/watermill-moulin-faber_TFO10871.php

Translated by Google •

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1.13 km

Ourthe Trail

Highlight (Segment) • Trail

Beautiful path from the residence to the silence next to the water. First forest then climbing rocks and then forest path over roots and stone. And the water on the right.

Translated by Google •

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1.40 km

Caves and Cliffs along the Ourthe

Highlight • Cave

Beautifully located climbing area on the Ourthe with its own picnic area and here the sound of the river instead of, as is often the case in Belgium, the road and railway line. Actually, there is something for everyone, although the focus is on easier to intermediate routes. The rock is good, but not always perfectly solid.

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3.15 km

Isbelle Karst Spring

Highlight • Natural Monument

The Karst spring of the Isbelle

When the stream "l'Isbelle" comes from an impenetrable layer of sandstone on the limestone ridge, downstream from
from the hamlet of Melines, she disappears. She's looking for her way further underground! This disappearance is caused by the presence of two small parallel fault lines, which are perpendicular to the direction of the valley of the Ourthe.
At low tide or under normal conditions, the Isbelle flow disappears at the first fault line for about 50m in a series of small and scattered sinkholes in the riverbed. This
are too small to be physically examined by humans. The water permanently feeds a “resurgence” or “karst spring” called “Fontaine de Thot”. In this place, just at the foot of the chalet of the “Spéléo Club de Belgique”, the water resurfaces before it flows into the Ourthe at the end of the Isbelle valley.
In a swollen river or after a thunderstorm, we can observe a saturation process and the water partly continues to the surface in the bed of the Isbelle, only then to submerge in the series of sinkholes of the second fault line. The water from these sinkholes feeds the second, but not permanent “karst source” of the Isbelle, about 100m from the bridge called “Pont des Gattes”.
hotton-tourisme.be/media/images/upload/promenade%20de%20la%20pierre.pdf

Translated by Google •

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3.25 km

Pont de l'Isabelle

Highlight • Bridge

Also called Pont des gattes.
A nice spot.

Translated by Google •

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4.78 km

Historic village of Hampteau and the Ourthe River

Highlight • Settlement

Hampteau (in Walloon Hamtea, locally pronounced /hamtεː/, meaning "hamlet") is a town and sub-municipality of the Belgian municipality of Hotton. Hampteau is located in Wallonia, in the Belgian Ardennes, in the province of Luxembourg.

The village is located on both sides of the N86 between Hotton and La Roche-en-Ardenne and has several restaurants and terraces. In the summer there is a funfair in the village, which is mainly visited by the local population. Along the Rue du Moulin, the road from the N86 to Werpin, near the Ourthe lies the charming old part of the village. In addition to the old water mill, the "Moulin Faber", you will find old houses and farms built in the limestone and sandstone characteristic of the region.
In Hampteau, the Castle of Héblon and the parish church of Saint Michael are also interesting monuments. Hampteau used to be known for its orchards. The apples from Hampteau could be of a special quality due to the microclimate present.
nl.wikipedia.org/wiki/Hampteau

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5.26 km

Héblon Castle

Highlight • Castle

Le Château d'Héblon, built in 1887 by Count Visart de Bocarmé Amédéé.

It is a hotel/restaurant and horse breeding farm, there are also 3 holiday homes for rent.

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8.33 km

The Alouette Quarry Nature Reserve

Highlight • Natural Monument

The Alouette quarry is located in Calestienne, 1.5 km south of Hotton. The site is in fact made up of two old contiguous abandoned quarries, one of Couvinian sandstone and the other of Givetian limestone. The contact zone of these two geological stages combined with a remarkable diversity of rocks explains the presence of vegetation and flora of great interest, including a population very rich in orchids. The local fauna has still only been very partially inventoried, but preliminary results suggest a particularly high diversity potential, particularly with regard to butterflies which are represented by at least 32 species. The site has been established as a state nature reserve since 2012 over an area of approximately 6 hectares.
biodiversite.wallonie.be/fr/1923-carriere-de-l-alouette.html?IDD=251660077&IDC=1881

Translated by Google •

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10.3 km

End point

Bus stop

Way Types & Surfaces

Way Types

4.93 km

2.88 km

1.86 km

427 m

123 m

< 100 m

Surfaces

5.07 km

2.37 km

1.37 km

1.18 km

147 m

113 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (270 m)

Lowest point (180 m)

Weather

Friday 22 May

28°C

12°C

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Ourthe Trail – Isbelle Karst Spring loop from Hotton

Faber Watermill

Ourthe Trail

Caves and Cliffs along the Ourthe

Isbelle Karst Spring

Pont de l'Isabelle

Historic village of Hampteau and the Ourthe River

Héblon Castle

The Alouette Quarry Nature Reserve

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