‘Beautiful beyond belief. Savage beyond reason’. We headed to UTS® (Ultra Trail Snowdonia), the only UTMB® World Series event in the UK, sponsored by HOKA.

In the form of photo diary, British photographer David Miller gives us a little insight into the 2023 edition of The Barkley Marathons.

Trail runner and photographer David Miller shares a selection of powerful images from the Mudcrew Arc of Attrition races 2023.

Wherever you're based, the UK is full of trail running opportunities, so check our guide to some of the very best.

In preparation for the world's biggest trail race, we help guide you through your ultra-distance trail running journey.