From a grand setting high above the Teign Valley, we have a duo of tantalisingly tortuous, 100% Pure Trail races in the most wonderful woodland setting on Saturday 12th March 2022. Puretrail’s 5th foray into the Big Woods of Fingle. Half-Marathon and 10k trail races start and finish at the wonderfully named Piddledown Common, on the approach to the iconic Castle Drogo, Drewsteignton, Dartmoor, Exeter, Devon EX6 6PB.


We have also secured a date for 2022 and the date is 12th March 2022.

Entries open for 2022  >>>>>>

A 10k trail race combined with a tough half marathon route means there’s a race for everyone and our bespoke event medals too!

Start time for 10k race is 10:45am to avoid runners in the half-marathon starting at 11:00am.  The trails go deep and steep. Down to the depths of the Teign River Valley, then rising high above the Fingle treeline. Two extremely tough Woodland Trail Races.


10km Route:

Deep River 10km course map pdf

Follow the red lines and arrows crossing the iron bridge over the river Teign to the aid station at Fingle Bridge. The blue lines and arrows are the route to the finish after crossing Fingle Bridge with some technical sections before turning right for home.

Elevation profile for the 10k trail race, with the Aid Station at mile 3,  Fingle Bridge. Total ascent 289m.

Half Marathon Route:

Deep River Trails, half-marathon course map

Follow the red lines and arrows to the aid station at Fingle Bridge and turn up onto a long hill before turning left and keeping high in the woods until a sharp left turn takes you down to the river. The longest climb is next, from the River Teign up to the highest point of the course and to the 2nd Aid Station at Hillfort car-park at mile 7.5. Now for the longest descent, back down to the river. Mile 9 sees the steepest climb of the day back to a crossroads. From here the blue lines and arrows show the way to the finish and you repeat a section completed earlier in the race, but you benefit again with another long descent, and then along the river to Fingle Bridge Aid Station at mile 11. Crossing over the bridge to follow the river with some technicals trails before turning right and back up to the finish.

Elevation Profile for half-marathon – a whopping 871m ascent but 7 miles have a positive ascent and the other 7 have a more descent than ascent. Plenty of tough hills but the benefit comes with an equal amount of downhill.

Aid stations at Fingle Bridge at 3 miles, also at mile 7.5 Hillfort car-park and mile 11 back at Fingle Bridge for the final leg.

The courses are fully marked and marshalled by runners for runners. Paramedics at Event HQ and on course.

Our trademark trophies for the winners and runners up. Prizes for age category winners (advised by email when results finalised).

Our bespoke t-shirts can be purchased separately and collected on the day.

Mandatory kit-list:

Trail shoes

Backpack or waist pack


Survival blanket

Waterproof jacket

Hat/Headcover (cap/buff)

Mobile phone with the emergency numbers stored.

Capacity to carry 250ml of liquid – we are cupless now so bring a collapsible cup or water bottle


Permission for the use of the land is given by the National Trust and Woodland Trust.

Permits granted by the Trail Running Association.