Race on Kovana
Anual / CC BY 3.0 / Wikimedia Commons
Trail Siero — Trail 25K
Siero, Principado de Asturias8 November 202625 km1000 m
Autumn trail race from Pola de Siero, the market town between Gijón and Oviedo, with 25 km and 12 km options on 8 November 2026. Elevation figures are estimates.
See how this race fits your training, the course profile and who else is going.