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GR-18Long Distance Trail (GR)·Linear
GR-18. Etapa 07. Castanesa-Aneto
Montanuy, Huesca
Moderate46.3/100Year-round
Distance
21.6 km
Est. duration
6h 31min
Elevation gain
+674 m
Elevation loss
-399 m
Highest point
2,179 m
Lowest point
1,359.5 m
Average elevation
1,659 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 10.0 · 1.0 km Distance
18% Avg
2000m – 2179mSlope35% Max
RiskHIGH
Demanding Climb
CAT 1
km 6.2 · 3.7 km Distance
19% Avg
1480m – 2179mSlope32% Max
RiskHIGH
Dangerous Descent
km 19.5 · 2.0 km Distance
15% Avg
1374m – 1663mSlope37% Max
RiskMEDIUM
Dangerous Descent
km 0.9 · 0.9 km Distance
10% Avg
1410m – 1499mSlope27% Max
RiskMEDIUM
Dangerous Descent
km 11.2 · 3.4 km Distance
9% Avg
1678m – 1996mSlope13% Max
RiskMEDIUM
Demanding Climb
km 3.1 · 0.8 km Distance
9% Avg
1359m – 1432mSlope12% Max
RiskMEDIUM
Demanding Climb
km 5.3 · 0.7 km Distance
7% Avg
1430m – 1480mSlope10% Max
RiskLOW
Dangerous Descent
km 16.1 · 0.7 km Distance
8% Avg
1678m – 1729mSlope9% Max
RiskLOW
7-Day Forecast
Slope distribution
Flat (≤1%)2%Gentle (1–5%)23%Steep (5–10%)40%Extreme (≥10%)35%
Child-friendlyNo
Pet-friendlyNo
Emergency exit points
- CastanesaTown0.3 km
- FonchaninaTown1.6 km
- Carretera principalMain road2.5 km
- Carretera principalMain road2.4 km
- Carretera principalMain road2.4 km
Similar trails
About this trail
Senderos de Gran Recorrido (GR)
| Start municipality | Montanuy |
| Region | Huesca |
| Source | Federación Española de Deportes de Montaña y Escalada (FEDME) |
| Start | 42.49674, 0.65956Open in maps |
| End | 42.55477, 0.74237 |
| Track points | 1,402 |