3 Viana do Castelo, Portugal Viana do Castelo, Portugal

Serra de São Mamede

South-western ascent from Areosa — the hardest of the 2 ways up

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Length: 3.4 km
Height gain: 228 m
Average: 6.8%
Steepest km: 9.6%
Summit altitude: 278 m
Difficulty: 51

2 ways up · this is the hardest Compare all 2

Viana do Castelo 6.3 km, 3.4% average, 214 m height gain
Areosa 3.4 km, 6.8% average, 228 m height gain

Elevation profile

49 m → 278 m Touch or hover to inspect

0–4% 4–6% 6–8% 8–10% 10–14% 14%+

Steepest km: km 1 at 9.6%

Climb analysis

Where the climbing is

0–4%: 0.5 km
4–6%: 0.9 km
6–8%: 0.5 km
8–10%: 0.3 km
10–14%: 1.3 km
14%+: 0.0 km

Hardest sustained

1 km · km 0.0–1.0: 9.6%
2 km · km 0.4–2.4: 7.9%

Time to the top

0h 16 at 3 W/kg · 70 kg rider + 8 kg bike, no wind

Kilometre by kilometre

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Km	Altitude	Gain	Gradient	Max
1	145 m	+96 m	9.6%	15.2%
2	192 m	+47 m	4.7%	10%
3	258 m	+66 m	6.6%	11%
4	278 m	+19 m	5.2%	5.6%

Route map

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Road surface not mapped yet Report a road type

No tunnels mapped Map a tunnel

At the summit now

Updated 6 min ago

14° Foggy Feels like 15° · 278 m

Wind 4 km/h N

How hard is 51?

Difficulty score is length × gradient, weighted for the steepest kilometre.

Puerto río Guadalbarbo 51

Subida Argallon, Río Bembezar 51

Serra de São Mamede, Areosa 51

Sierra Norte de Sevilla, Río Bembezar 51

Côte de Saint-Georges-d'Hurtières, Aiguebelle 51

Help complete this climb

Riders’ photos, notes and corrections make every profile better.

Add a photo No photos yet — the last kilometre, the summit sign Write a rider note Traffic, water, where it really bites Map a tunnel Mark where the road goes underground Report a road type Not mapped yet — paved, unpaved or cobbles

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Added by sergio-lesi · 1 contributor

Location

Country Portugal

Province Viana do Castelo

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