Wild Boar Fell, Swarth Fell and Swarth Fell Pike from Mallerstang

Three summits joined by a single ridge, a ruined castle at the start, and some of the emptiest fell running anywhere in the Yorkshire Dales boundary.

VERY HARD

Effort: Long day out, serious climb

Underfoot: Open fell or rough terrain

E4·T3 how we grade routes
Distance
22.7km
Ascent
708m
Descent
708m
High point
705m
Est. time
4h 50m – 6h 35m
Route type
Loop
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Elevation profile0km5km10km15km20km705m267m
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Three summits joined by a single ridge, a ruined castle at the start, and some of the emptiest fell running anywhere in the Yorkshire Dales boundary.

A remote 22.7km loop from Mallerstang over Wild Boar Fell, Swarth Fell and Swarth Fell Pike, three connected summits above the Eden headwaters, with 466m of climbing.

The route

Mallerstang is a valley most visitors to the Dales never see, tucked away at the northern edge of the National Park along the Settle-Carlisle railway line. The route starts near Pendragon Castle, a ruined 12th century tower said in legend to have been built by King Arthur's father, Uther Pendragon, and dwarfed by the fells rising steeply on either side of the valley.

Three summits

Wild Boar Fell is the first and highest of the three tops at around 708m, its broad, flat summit ringed with old boundary cairns and giving a proper sense of exposure across the Eden headwaters below. The ridge continues over Swarth Fell and the smaller Swarth Fell Pike, linked ground that stays high for a genuinely sustained stretch before the route drops back down towards the valley.

Why it works

At 22.7km with 466m of ascent, this route packs three named summits into one continuous outing, on ground that's about as remote as the Yorkshire Dales gets - the valley and fells here were only added to the National Park boundary in 2016, and it shows in how quiet the paths still are. If you want proper fell running without the crowds of the honeypot Dales routes, this is it.

Getting there

Parking at Pendragon Castle is limited to a small roadside layby - fine for a handful of cars, but arrive early on a nice weekend. Kirkby Stephen, a few kilometres north, has more services if you need them before or after. The Settle-Carlisle railway runs the length of the valley below, and the Dent Head and Ais Gill viaducts nearby are worth a look if you have time either side of the run - a reminder that this remote-feeling valley was, for a while, one of the most engineered stretches of railway in the country.

Watch out for

Exposed, flat summit ground that can be disorientating in cloud despite the lack of technical difficulty. Genuinely remote with limited phone signal and no realistic bail-out partway round. River crossings on the lower ground can be difficult after heavy rain.

Kit for this route

INOV8 Men's MUDTALON Speed V2 Running Shoe

INOV8 Men's MUDTALON Speed V2 Running Shoe

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Salomon Supercross 4 Trail Running Shoes

Salomon Supercross 4 Trail Running Shoes

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Hoka Speedgoat 7

Hoka Speedgoat 7

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Salomon ADV Hydra Vest 4

Salomon ADV Hydra Vest 4

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Mountain Fuel Sports Jelly Hydrogel Energy Gel

Mountain Fuel Sports Jelly Hydrogel Energy Gel

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Garmin Forerunner 55 Running Watch

Garmin Forerunner 55 Running Watch

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Safety on this route

999 / 112
Ask for Police → Mountain Rescue
Grid ref
SD789021
  • No signal? Text 999 — pre-register first: text register to 999
  • Tell someone your route and expected return time before you head out

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Common questions

About the author

JM

Jason Millward

Every route on this site has been run personally.

More about TRP →

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