Ultra Trail da 50 km all' interno dell' Appennino di Basilicata, bellissimo e selvaggio
Ultra Trail of 50 km inside the beautiful and wild Basilicata Apennines
International Trail Running Association
A non-profit organization
"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."