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GR-121Long Distance Trail (GR)·Linear
GR-121. Etapa 10. Leintz Gaztaga-Arantzazu
Salinas de Léniz, Biscay
Hard57.1/100Year-round
Distance
26.2 km
Est. duration
8h 11min
Elevation gain
+975 m
Elevation loss
-754 m
Highest point
1,089.6 m
Lowest point
429.9 m
Average elevation
768 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
Demanding Climb
CAT 2
km 0.4 · 2.4 km Distance
14% Avg
430m – 782mSlope72% Max
RiskHIGH
Dangerous Descent
km 23.0 · 1.5 km Distance
16% Avg
668m – 911mSlope33% Max
RiskHIGH
Demanding Climb
CAT 4
km 25.7 · 0.5 km Distance
24% Avg
589m – 718mSlope33% Max
RiskHIGH
Demanding Climb
CAT 3
km 3.0 · 1.2 km Distance
18% Avg
781m – 992mSlope29% Max
RiskHIGH
Dangerous Descent
km 11.2 · 0.6 km Distance
16% Avg
733m – 830mSlope27% Max
RiskHIGH
Dangerous Descent
km 10.1 · 0.8 km Distance
18% Avg
811m – 945mSlope25% Max
RiskHIGH
Dangerous Descent
km 7.1 · 1.2 km Distance
15% Avg
902m – 1089mSlope20% Max
RiskHIGH
Demanding Climb
CAT 3
km 20.2 · 2.5 km Distance
9% Avg
690m – 916mSlope15% Max
RiskMEDIUM
7-Day Forecast
Slope distribution
Flat (≤1%)12%Gentle (1–5%)33%Steep (5–10%)22%Extreme (≥10%)33%
Child-friendlyNo
Pet-friendlyNo
- 👟Trail running shoesFootwearRecommended
- 🪄Trekking poles recommendedTrekking polesRecommended
- 💧Carry 6–7 L (no water sources on route)WaterEssential
- 🧴Sunscreen recommendedSun protectionRecommended
- 🩹Basic first aid kit + whistle + thermal blanketFirst aid kitEssential
- 🗺️GPS or offline route downloadNavigationEssential
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About this trail
Senderos de Gran Recorrido (GR)
| Start municipality | Salinas de Léniz |
| Region | Biscay |
| Source | Federación Española de Deportes de Montaña y Escalada (FEDME) |
| Start | 42.98689, -2.56809Open in maps |
| End | 42.97939, -2.40075 |
| Track points | 1,133 |