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Built on bad decisions in Boulder, CO.

Ultra-Trail Snowdonia

5 Race Events50K, 50 Mile, 100 Mile, 100K, 25K

UTMB

Llanberis, Wales, United Kingdom

Ultra-Trail Snowdonia ERYRI 25K

May 16, 2027

25K

Ultra-Trail Snowdonia UTS 100K

May 15, 2027

100KCrew

Course map for Ultra-Trail Snowdonia UTS 100M

Ultra-Trail Snowdonia UTS 100M

May 14, 2027

100 MileCrew

Course map for Ultra-Trail Snowdonia UTS 50K

Ultra-Trail Snowdonia UTS 50K

May 15, 2027

50KCrew

Course map for Ultra-Trail Snowdonia UTS 80K

Ultra-Trail Snowdonia UTS 80K

May 14, 2027

50 MileCrew