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Hiking trails & Routes
Wallonia

Valley of the Three Mills Loop from Frassem

Routes
Hiking trails & Routes
Wallonia

Valley of the Three Mills Loop from Frassem

Moderate

4.5

(20)

61

hikers

Valley of the Three Mills Loop from Frassem

02:53

10.6km

160m

Hiking

Hike the moderate 6.6-mile Vallée des Trois Moulins loop from Frassem, exploring an arboretum and the historic village of Guirsch.

Last updated: February 26, 2026

Waypoints

A

Start point

Bus stop

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1

1.28 km

Frassem Arboretum

Highlight • Forest

This young arboretum (1990) a few kilometers away from Arlon gathers on a surface of 2 ha, 48 indigenous broad-leaved tree species.

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2

2.63 km

Valley of the Three Mills

Highlight (Segment) • Trail

If you're looking for a scenic, quiet hike in the Luxembourg countryside, you should seek out the Trois Moulins Valley. This valley owes its name to the three historic mills …

Translated by Google •

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B

10.6 km

End point

Bus stop

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Way Types & Surfaces

Way Types

5.99 km

2.06 km

1.56 km

977 m

Surfaces

2.91 km

2.77 km

2.13 km

1.82 km

954 m

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Elevation

Elevation

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

Highest point (390 m)

Lowest point (320 m)

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Weather

Powered by Foreca

Thursday 28 May

29°C

12°C

16 %

Additional weather tips

Max wind speed: 9.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

What is the difficulty level of the Vallée des Trois Moulins — loop from Frassem?

This loop is considered a moderate hike. While some paths are easily accessible, it requires good fitness and sure-footedness, aligning with a SAC 2-3 classification. Some sections may not be paved and could be challenging.

How long does it typically take to complete this loop?

The estimated duration for completing the 10.6 km loop is around 2 hours and 53 minutes, depending on your pace and stops.

Where can I park to access the Vallée des Trois Moulins — loop from Frassem trail?

The loop starts from Frassem. While specific parking details aren't provided, it's generally advisable to look for local parking options in or near Frassem village, which serves as the trailhead.

Is the Vallée des Trois Moulins — loop from Frassem trail dog-friendly?

Yes, this trail is generally considered dog-friendly. However, it's always recommended to keep your dog on a leash, especially when passing through villages, near wildlife, or in areas where livestock might be present.

What is the best time of year to hike this route?

The trail passes through deciduous forests and features an arboretum, making spring and autumn particularly beautiful for vibrant foliage. Summer offers pleasant conditions, while winter hiking is possible but be prepared for potentially muddy sections, especially along the river.

Are there any permits or entrance fees required for this hike?

No, there are no specific permits or entrance fees required to hike the Vallée des Trois Moulins — loop from Frassem. It is freely accessible to the public.

What kind of scenery and points of interest can I expect along the way?

You'll experience diverse scenery, including beautiful deciduous forests. Key highlights include the Frassem Arboretum, a 2-hectare site with 48 indigenous broad-leaved tree species and educational panels. The trail also leads through the Valley of the Three Mills and passes near Guirsch, one of the 'Most Beautiful Villages of Wallonia', known for its historical architecture.

What is the terrain like on the Vallée des Trois Moulins loop?

The terrain consists of easily accessible paths, including tracks, roads, and dedicated hiking trails. Be aware that some sections may not be paved and could be more challenging. Parts of the route, particularly along the river, can be muddy, so appropriate footwear is recommended.

Does this trail connect with other hiking routes?

Yes, the route intersects with several other official trails. You'll find sections that overlap with paths like Belarel, Trail Beckerich Rouge, MTB Beckerich, N° 4bis - Arboretum de Frassem, GR 15 De la Lorraine belge à l'Eifel, and GRT-BVW 12 Torgny - Guirsch.

Is the Vallée des Trois Moulins — loop from Frassem suitable for families with children?

Given its moderate difficulty and the recommendation for good fitness and sure-footedness, it might be challenging for very young children or those unaccustomed to hiking. However, older children who are active and enjoy walking could find the diverse scenery and the arboretum engaging.

Are there any facilities like cafes or restaurants near the trail?

The trail passes near the village of Guirsch, which is a classified village. While specific establishments aren't detailed, exploring Guirsch or the starting point in Frassem might offer options for refreshments or a meal after your hike.

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