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Trail de montaña circular de 42 km y 2275 D+ de desnivel positivo que recorre la Sierra de Ayllón de Segovia (España).
40 km race trail running with and 2089+ m which cross the amazing Ayllón mountains landscape.
Born in July 2013, the ITRA (International Trail Running Association) aims to give a voice to parties involved in trail running in order to promote its strong values, its diversity, the safety of races and the health of runners, as well as to further the development of trail running and ensure a constructive dialogue between the national and international bodies with an interest in the sport.
Copyright @ 2002-2021 ITRA, All Rights Reserved
Riaza, Spain
