The Return of the Incredible Snowdon Ultra® 100 Mile Race! With Checkpoints spanning Snowdonia National Park & 5483m of Ascent over 100 stunning miles and over the beautiful mountains of Snowdonia Eryri! This is GB Ultras support at its very best throughout. The 100 Mile route leaves Betws-y-Coed (finish line for the 50 mile event) and heads to Beddgelert via the Snowdonia Slate Trail leaving the trail for ascents of Cnicht (689m) before heading through Nant Gwynant Valley passing Sygun Copper Mine, Llyn Dinas and Llyn Gwynant. Runners then finish the race with the ascent of Moel Siabod. Live online GPS tracking (via GB Race Tracker) follows the runners along the course and 2022 UTMB Qualifier. The race is classed as a Navigation Event.