All trails
GR-MAMLong Distance Trail (GR)·Linear
GR-MAM - Sentier de la Mamer
Mamer
Hard51.7/100Year-round
Distance
25.3 km
Est. duration
6h 51min
Elevation gain
+321 m
Elevation loss
-298 m
Highest point
359.3 m
Lowest point
217.1 m
Average elevation
302 m
Elevation profile
Flat (≤1%)Gentle (1–5%)Steep (5–10%)Extreme (≥10%)
Flat (≤1%)
Gentle (1–5%)
Steep (5–10%)
Extreme (≥10%)
Critical Segments
Dangerous Descent
km 15.8 · 0.3 km Distance
18% Avg
281m – 338mSlope23% Max
RiskHIGH
Dangerous Descent
km 22.6 · 1.0 km Distance
11% Avg
225m – 338mSlope16% Max
RiskMEDIUM
Demanding Climb
km 16.2 · 0.6 km Distance
8% Avg
273m – 321mSlope15% Max
RiskMEDIUM
Dangerous Descent
km 8.3 · 0.4 km Distance
8% Avg
267m – 295mSlope19% Max
RiskLOW
Dangerous Descent
km 6.5 · 0.9 km Distance
8% Avg
275m – 350mSlope18% Max
RiskLOW
Demanding Climb
km 4.2 · 0.8 km Distance
7% Avg
283m – 339mSlope12% Max
RiskLOW
Demanding Climb
km 18.3 · 0.7 km Distance
5% Avg
311m – 350mSlope10% Max
RiskLOW
7-Day Forecast
Slope distribution
Flat (≤1%)14%Gentle (1–5%)47%Steep (5–10%)21%Extreme (≥10%)17%
Child-friendlyNo
Pet-friendlyNo
- 🥾Mountain boots with Vibram soleFootwearEssential
- 🪄Trekking poles highly recommendedTrekking polesEssential
- 💧Carry 5–6 L (no water sources on route)WaterEssential
- 🧴Sunscreen recommendedSun protectionRecommended
- 🩹Basic first aid kit + whistle + thermal blanketFirst aid kitEssential
- 🗺️GPS or offline route downloadNavigationEssential
Similar trails
| Start municipality | Mamer |
| Start | 49.62605, 6.02336Open in maps |
| End | 49.74834, 6.10684 |
| Track points | 1,512 |