Plizio Visual Lab
Mamer Valley
The Mamer Valley is an extensive nature reserve in central Luxembourg, stretching along the Mamer River from Kopstal to its confluence with the Alzette near Mersch. This region is geologically defined by Luxembourg sandstone, which has created deep gorges and prominent rock formations such as the 'Huerewee'. The dense deciduous forests, primarily consisting of beech and oak, provide an important habitat for rare bird species like the kingfisher and the white-throated dipper. Historically, the valley is of great significance, as it contains remains of a Roman temple complex and ancient routes that were once part of the connection between Reims and Trier. The valley's flora includes rare ferns and mosses that thrive in the cool, humid microclimate of the gorges. Numerous hiking and cycling trails crisscross the area, making it a major local recreation area for the region around the capital. The management of the area aims to preserve the natural dynamics of the river and the biodiversity of the forest ecosystems.
- Location: Luxembourg
- Top sights: Hondsfiels · Saint-Nicolas · Kulturhaus Kopstal
- Nearby: Strassen (4 km)
Best time to visit & climate
The most pleasant time to visit is Jun–Aug.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 1 | 1 | 5 | 9 | 13 | 17 | 19 | 19 | 15 | 10 | 5 | 2 |
| Rain mm | 67 | 57 | 57 | 46 | 70 | 68 | 65 | 72 | 56 | 65 | 68 | 79 |
📋 Practical info
Geography
Facts
- The Mamer River rises at Hivange and flows into the Alzette after 25 kilometers.
- The remains of the Roman site 'Mamer-Huerewee' are located in the valley.
- The nature reserve is part of the larger 'Kopstal-Mersch' protection network.
- The valley's sandstone formed about 200 million years ago during the Lias period.
- Rare ferns such as the hart's-tongue fern can be found in the rock crevices.
- A regional hiking trail, 'Autopédestre Kopstal', leads through the core area.
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
© OpenStreetMap contributors · OpenRouteService
Sights in the town Mamer Valley (10)
Saint-Maximin
Church building in Luxembourg, site for worship and community life.
D´Moelleschkapell
Chapel in the Mamer valley, small religious building for prayers.
Kanounentiermche vu Kielen🗼 tower
Tower in Kielen, former cannon tower or lookout.
Missiounskraiz
Viewpoint with a cross, overlooking the Mamer valley.
Réserve naturelle communale Driesch
Communal nature reserve, protecting local flora and fauna.
Réserve naturelle communale Mimelsratt
Communal nature reserve, habitat for rare species.
Sights nearby
Frequently asked questions
What does the Mamer Valley offer?
Are there Roman caves there?
Is the valley suitable for cyclists?
Where is Schoenfels Castle found?
Is hiking in the Mamer Valley strenuous?
Mamer Valley: where is it located?
Mamer Valley: what is there to see?
Mamer Valley: when is the best time to visit?
Mamer Valley: why is it worth visiting?



























