Snowdonia Slate Trail Ultra Marathon Logo
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Snowdonia Slate Trail - Event

90 Mile Circular Ultra around Snowdonia

The Snowdonia Slate Trail Ultra is a 90 mile (145 Km) Ultra Marathon around Snowdonia starting on 3rd of September 2021. The route starts and finishes just outside Bangor, on the North Wales Coast. It loops through many well known places such as Llanberis, Beddgelert and Betws-y-Coed as well as some lesser known places

Snowdonia Slate Trail Ultra

The race starts at 19:00 on Friday the 3rd September and has a 48 hour time limit (19:00 on Sunday the 5th September). There are 3 checkpoints on route that all competitors must pass through within a time limit. Each checkpoint will be stocked with snacks, hot drinks and water for competitors to recharge and re-supply.

Every competitor is given a GPS tracker so we can see where you are at all times during the race and your family and friends can watch your progress online. The GPS tracker is also equipped with a SOS button, so if you do have a problem we can find you.

If you want or need to withdraw from the event after starting, we will transport you to your nearest checkpoint where you can arrange your own transport home from there.


Bangor Rugby Club - LL57 4AA


Friday 3rd September 2021 - 16:00 - 18:45 @ Race HQ


Parking will be available @ Race HQ, Please park at the far end of the car park

What you get

  • Dedicated Safety and Medical cover
  • GPS Tracker to use on the event. Family and spectators can track your progress online
  • Checkpoint refreshments
  • Up Hill Down Dale finishers momento
  • 10% discount on next race with Up Hill Down Dale

Top 3 finishers

  • Up Hill Down Dale special momento
  • Free entry to another Up Hill Down Dale event
  • Sponsor goodies


Completion = 5 UTMB points for your efforts.


Entry Fee - £145 Earlybird (01/03/2021) - £165 Normal


To enter the Snowdonia Slate Trail it is expected that you will have completed a minimum of one 40 mile trail event in the 2019/2020 season and you can navigate effectively. Be aware that this is an incredibly tough adventure on remote trail...lots of peace and quiet!


The route of the race goes through farm land, farms, private forests and private estates. As such the countryside code must be followed at all times. You are responsible for the opening and closing of gates during the race.


The Snowdonia Slate Trail will be limited to 50 entrants. There will not be a waiting list


If for any reason you are unable to attend the race, there will not be a refund or an option to defer your entry, however you are welcome to transfer your entry to another competitor via SiEntries, the cut off for transfers is 28 days prior to the start of the event.

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