Altigraphs
3 Cantabria, Spain

Subida a Bostronizo

Southern ascent from Arenas de Iguña
Length
4.5 km
Height gain
258 m
Average
5.8%
Steepest km
7.4%
Summit altitude
427 m
Difficulty
52

Elevation profile

170 m → 427 m Touch or hover to inspect
0–4% 4–6% 6–8% 8–10% 10–14% 14%+
Steepest km: km 2 at 7.4%

Climb analysis

Where the climbing is

0–4%
1.0 km
4–6%
0.8 km
6–8%
2.0 km
8–10%
0.8 km
10–14%
0.0 km
14%+
0.0 km

Hardest sustained

1 km · km 0.8–1.8
8.0%
2 km · km 1.0–3.0
7.4%

Time to the top

0h 19 at 3 W/kg · 70 kg rider + 8 kg bike, no wind

Kilometre by kilometre

Export CSV
Km Altitude Gradient 0–15%
1 190 m 2.0%
2 263 m 7.4%
3 337 m 7.4%
4 409 m 7.2%
5 427 m 3.9%

Route map

Two fingers to pan
Road surface not mapped yet Report a road type
No tunnels mapped Map a tunnel

How hard is 52?

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

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
Vote the best months to ride No votes yet
Nobody has voted yet Ridden this one? Tap the months you'd recommend to help other riders time it right.
Tap a month you'd recommend
Added by MAVEHAGHE · 1 contributor

Climbs nearby