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GR-228Long Distance Trail (GR)·Linear
GR-228. Etapa 01. Deusto-Bolueta
Bilbao, Biscay
Moderate29.6/100Year-round
Elevation profile
Flat (≤1%)
Gentle (1–5%)
Steep (5–10%)
Extreme (≥10%)
Critical Segments
Dangerous Descent
km 3.0 · 0.7 km Distance
15% Avg
75m – 180mSlope32% Max
RiskHIGH
Demanding Climb
CAT 4
km 3.7 · 0.8 km Distance
16% Avg
75m – 207mSlope31% Max
RiskHIGH
Dangerous Descent
km 11.8 · 1.1 km Distance
13% Avg
174m – 320mSlope20% Max
RiskMEDIUM
Demanding Climb
CAT 4
km 1.6 · 1.3 km Distance
11% Avg
30m – 179mSlope20% Max
RiskMEDIUM
Dangerous Descent
km 5.2 · 0.6 km Distance
14% Avg
135m – 226mSlope20% Max
RiskMEDIUM
Demanding Climb
km 6.5 · 0.6 km Distance
9% Avg
146m – 206mSlope20% Max
RiskMEDIUM
Dangerous Descent
km 13.0 · 0.9 km Distance
11% Avg
76m – 171mSlope19% Max
RiskMEDIUM
Demanding Climb
CAT 4
km 9.5 · 0.9 km Distance
10% Avg
284m – 377mSlope19% Max
RiskMEDIUM
Distance
15.5 km
Est. duration
4h 19min
Elevation gain
+263 m
Elevation loss
-271 m
Highest point
381.5 m
Lowest point
3 m
Average elevation
163 m
7-Day Forecast
Slope distribution
Flat (≤1%)9%Gentle (1–5%)27%Steep (5–10%)25%Extreme (≥10%)39%
Child-friendlyNo
Pet-friendlyNo
- 👟Trail running shoesFootwearRecommended
- 🪄Trekking poles recommendedTrekking polesRecommended
- 💧Carry 4–5 L (no water sources on route)WaterEssential
- 🧴Sunscreen recommendedSun protectionRecommended
- 🗺️GPS or offline route downloadNavigationEssential
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About this trail
Senderos de Gran Recorrido (GR)
| Start municipality | Bilbao |
| Region | Biscay |
| Source | Federación Española de Deportes de Montaña y Escalada (FEDME) |
| Start | 43.26782, -2.94944Open in maps |
| End | 43.24639, -2.90958 |
| Track points | 1,414 |