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Urduñako Mendi Lasterketa
Runners crossing the river on the Trail 33km race through Sierra Salvada

urduñako mendi lasterketa

Trail 33km

33km · 1,750m+ · 5h 30min · 275 runners

09:308 NOV 2026
UTMB Index 50K

33km

Distance

1.750m+

Elevation gain

5h 30min

Time limit

275

Participants

0km33kmBedarbide 1.041m
Register now
Runners crossing the river

Route

The main race covers 33km with 1,750m+ of elevation gain, starting and finishing at Foru Plaza in Orduña. From the old town, the route heads towards Tertanga, crossing rivers and passing under the emblematic Pico del Fraile, a huge boulder shaped like a friar.

After the climb, we ascend to Mount Txolope (1,026m) with panoramic views of the valley and the Virgin of Txarlazo. We descend along the ancient road that connected Castilla with Bizkaia, passing by the Gualdetxu spring, to the Txoza recreational area, which marks the halfway point.

Route through the beech forests

The second half takes us through the spectacular Bedarbide climb between rivers and waterfalls, traversing the heights of Sierra Salvada to La Ponata and the famous Senda Negra, with its impressive cliffs and stone walls.

The final section descends through a beech forest to Lendoño de Arriba before returning to Orduña through the Valley of the Kites, with panoramic views over the entire mountain range. A route you won't forget.

Elevation profile

Max elevation

1.041m

Min elevation

293m

Elevation gain

1.750m+

Elevation loss

1.750m-

Route elevation profile
Premios

Trail 33km prizes

The individual race gets its own spotlight with cash prizes for the top five overall finishers.

Top 1

600€

Top 2

300€

Top 3

150€

Top 4

100€

Top 5

75€

Race records

Men

2h 46min 16seg

Imanol Goñi

Women

3h 24min

Ainara Urrutia

Key points

Route highlights

km 0

Foru Plaza

293m

Start from the old town of Orduña

km 8

Fraileburu

822m

Huge boulder you must pass under

km 10

Monte Txolope

1.027m

Panoramic view of the valley and the Virgin of Txarlazo

km 11.9

Pagadia

863m

Descent along the ancient Castilla-Bizkaia road

km 16.8

Fuente de la Txoza

500m

Halfway point · Relay exchange · Bronze Age dolmen

km 20.3

Bedarbide

1.041m

Spectacular route between rivers and waterfalls

km 26

Lendoño

462m

Historic shepherding area and spectacular cliffs

km 33

Foru Plaza

293m

Finish in the heart of Orduña

33km · Circular

Route track

View on Wikiloc

Route track

Interactive route · Drag to explore · Zoom for details

Eskerrik asko. Se ha notado el mimo con el que la organizáis. Da gusto coronar uno de esos repechos infernales y tener gente tan animada dándolo todo. El toque de la alboka brutal. Lo dicho, entorno espectacular y organización de 10. Seguro que el año que viene repito.
Aitor Quintanilla

Aitor Quintanilla

Corredor

Support

Institutional

Ayuntamiento de Orduña

Ayuntamiento de Orduña

Monumento Natural Monte Santiago

Monumento Natural Monte Santiago

Red de Áreas Protegidas de Castilla y León

Red de Áreas Protegidas de Castilla y León

Junta de Castilla y León

Junta de Castilla y León

Organizer

Gualdetxu MBTT

Gualdetxu MBTT

Sponsors

Lacturale

Lacturale

Apartamentos Ciudad de Orduña

Apartamentos Ciudad de Orduña

Crown

Crown