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GR-203Long Distance Trail (GR)·Linear
GR-203. Etapa 04. Seroiro-San Antolín de Ibias
Ibias, Asturias
Moderate28.3/100Year-round
Elevation profile
Flat (≤1%)
Gentle (1–5%)
Steep (5–10%)
Extreme (≥10%)
Critical Segments
Demanding Climb
CAT 3
km 8.3 · 1.6 km Distance
13% Avg
332m – 530mSlope42% Max
RiskHIGH
Demanding Climb
km 2.6 · 0.6 km Distance
12% Avg
554m – 633mSlope17% Max
RiskHIGH
Dangerous Descent
km 5.8 · 1.8 km Distance
11% Avg
378m – 576mSlope37% Max
RiskMEDIUM
Demanding Climb
CAT 3
km 0.0 · 2.6 km Distance
11% Avg
267m – 554mSlope19% Max
RiskMEDIUM
Dangerous Descent
km 3.9 · 0.5 km Distance
14% Avg
577m – 655mSlope17% Max
RiskMEDIUM
Dangerous Descent
km 7.8 · 0.4 km Distance
8% Avg
333m – 369mSlope10% Max
RiskLOW
Distance
10.0 km
Est. duration
3h 24min
Elevation gain
+535 m
Elevation loss
-317 m
Highest point
656 m
Lowest point
266.2 m
Average elevation
485 m
7-Day Forecast
Slope distribution
Flat (≤1%)4%Gentle (1–5%)21%Steep (5–10%)34%Extreme (≥10%)41%
Child-friendlyNo
Pet-friendlyYes
- 👟Trail running shoesFootwearRecommended
- 🪄Trekking poles recommendedTrekking polesRecommended
- 💧Carry 3–4 L (no water sources on route)WaterEssential
- 🧴Sunscreen recommendedSun protectionRecommended
- 🗺️Offline download recommendedNavigationRecommended
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About this trail
Senderos de Gran Recorrido (GR)
| Start municipality | Ibias |
| Region | Asturias |
| Source | Federación Española de Deportes de Montaña y Escalada (FEDME) |
| Start | 43.04307, -6.86860Open in maps |
| End | 43.05915, -6.82315 |
| Track points | 335 |