Slate Trail Ultra

NOV
14-15
2026
Two long distance trail races on the Snowdonia Slate Trail that pass slate heritage sites, include aid stations, GPS tracking and strict mountain safety requirements.
14-15 Nov 2026
142 kilometers 84 kilometers

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Slate Trail Ultra

APEX Running hosts the second edition of the Slate Trail Ultra in 2026. The event uses the Snowdonia Slate Trail and presents two long off road races that visit former slate production sites and several quiet villages within Eryri / Snowdonia.

  • Slate Trail Ultra : 142 km and 4,200 m+ ascent.
  • Ultra Tour of the Quarries : 84 km and 2,500 m+ ascent.

The full route follows valley paths, mountain passes, moorland and river gorges and passes sites of industrial significance within the Slate Landscape of Northwest Wales, a UNESCO World Heritage Site. Route files and a waterproof route map are provided, and live GPS tracking and timing are supplied by a third party provider. Drop bag service is available for Slate Trail Ultra runners, and several aid stations are staffed along each route; hot and cold foods are offered depending on station type.

The event operates mandatory kit checks at registration and will perform spot checks on course. Competitors must be able to self navigate, carry map and compass, and be equipped for rapidly changing mountain weather. Required items include full waterproof body cover, a survival bag, two independent torches with spare batteries, and capacity to carry at least 1.5 litres of fluid. The organiser provides emergency medical cover, finishers receive a locally produced slate finisher medal and a post finish meal, and eligible finishers receive an UTMB ITRA index contribution. Visit the organization's website for the most recent information.

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