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GR-109Long-distance trail (GR)·Linear

GR-109. Etapa 21. Tuna-Onón

Cangas del Narcea, Asturias

Hard65.1/100Year-round

Elevation profile

Flat (≤1%)
Gentle (1–5%)
Steep (5–10%)
Extreme (≥10%)

Critical Segments

Dangerous Descent

km 13.8 · 3.5 km Distance

11% Avg
237m – 617m
Slope20% Max
RiskHIGH

Demanding Climb

CAT 3

km 0.0 · 2.3 km Distance

12% Avg
374m – 634m
Slope19% Max
RiskMEDIUM

Demanding Climb

CAT 4

km 22.3 · 1.0 km Distance

11% Avg
575m – 692m
Slope17% Max
RiskMEDIUM

Dangerous Descent

km 32.5 · 1.2 km Distance

13% Avg
475m – 634m
Slope17% Max
RiskMEDIUM

Demanding Climb

km 3.2 · 0.8 km Distance

9% Avg
625m – 697m
Slope15% Max
RiskMEDIUM

Dangerous Descent

km 9.4 · 0.5 km Distance

14% Avg
746m – 812m
Slope14% Max
RiskMEDIUM

Dangerous Descent

km 2.4 · 0.3 km Distance

12% Avg
589m – 631m
Slope14% Max
RiskMEDIUM

Demanding Climb

CAT 3

km 17.7 · 3.1 km Distance

10% Avg
236m – 549m
Slope14% Max
RiskMEDIUM
Distance

33.8 km

Est. duration

10h 26min

Elevation gain

+1,195 m

Elevation loss

-1,086 m

Highest point

857.6 m

Lowest point

235.9 m

Average elevation

645 m

7-Day Forecast

Slope distribution

Flat (≤1%)8%Gentle (1–5%)26%Steep (5–10%)30%Extreme (≥10%)36%
Child-friendlyNo
Pet-friendlyNo

Emergency exit points

  • BrueḷḷesTown
    2.5 km
  • FuntuelTown
    2.1 km
  • TandesTown
    0.9 km
  • La VeiguieḷḷaTown
    0 km
  • ValcabuTown
    2.4 km

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GR-285GR

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About this trail

Senderos de Gran Recorrido (GR)

Start municipalityCangas del Narcea
RegionAsturias
SourceFederación Española de Deportes de Montaña y Escalada (FEDME)
Start43.22309, -6.45481Open in maps
End43.22841, -6.44783
Track points1,256