Parking
Use the small roadside spaces about 1 km south of Outhgill, where the wide track to the Thrang leaves the road. The spaces hold roughly six or seven cars. Walk about five minutes to Hazelgill Farm to start the climb.

Yorkshire Dales National Park, EN
Airy 708 m plateau above Mallerstang, hidden tarn, waterfall finish
Overview
Map & elevation
Plan your hike

The highest, rockiest slopes around here are a summer buffet for grizzly bears.
Yorkshire Dales Tour Guide
Parkwolf is a GPS audio tour guide for Yorkshire Dales National Park. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.
Recorded for this trailhead
Wild Boar Fell Trailhead“You're approaching the roadside start for Wild Boar Fell, a full-day walk onto a broad summit above Mallerstang. The ten-mile loop climbs about 550 metres and takes roughly five hours.”
Plays as you drive up to this trailhead in the Parkwolf Yorkshire Dales Tour Guide.
More stories near here in the app
Trail guide
A 10 mile (16 km) closed loop from the roadside spaces about 1 km south of Outhgill, with roughly 550 m of climbing and around 5 hours for most walkers including stops and map checks. Five minutes of walking brings you to Hazelgill Farm, where the classic bridleway ascent begins. From there you gain the ridge and the 708 m summit, turn south over Swarth Fell, drop to Aisgill Moor Cottages, pass Hell Gill Force, then head north on the bridleway east of the young River Eden back to the car.
The climb does the hard work early and pays out at the top. The summit is a broad flat plateau with a trig point and a shelter, standing cairns and pillars along the eastern edge, and the hidden hollow of Sand Tarn tucked away below. Views run the length of Mallerstang and out across the surrounding fells. Swarth Fell keeps the height and the views for longer than you expect, and the final valley miles give you the fell you just climbed in profile.
Hard, or at least moderately hard. The approach and the main climb are on good clear ground. Higher up it gets rougher, with tussocky grass, moorland and limestone underfoot. There is a lot of uneven walking, and the descent to Aisgill Cottages is where the path fades and boots start earning their keep. The track past Hell Gill Force is intermittent rather than continuous.
The high plateau is wide open with almost no shelter, and the fourth-highest ground in the Dales catches whatever the weather is doing. In clear conditions the ridge line is obvious. In mist the flat top and the vague descent are much less forgiving, so carry a map and compass and know how to use them rather than relying on the ground telling you where to go.
The open tops are good listening country. Skylarks, meadow pipits, curlew and lapwings all use this ground, and spring and early summer are the noisiest months for them. Nothing is guaranteed, so treat any sighting as a bonus and give nesting birds space.
Use the small roadside spaces about 1 km south of Outhgill, where the wide track to the Thrang leaves the road. Six or seven cars fit sensibly, so an early arrival helps and parking considerately matters more than usual. Dogs are fine on the public rights of way, but this crosses farmed ground: keep them on a lead near livestock, and on a short lead from March through July for ground-nesting birds. Limestone pavement, caves and sink holes are permanent hazards for curious dogs.
The distance and rough ground make this a full day rather than a casual outing. Two sections, the descent from Swarth Fell and the stretch past Hell Gill Force, need patience with route-finding. Take it on in poor visibility only if you are confident navigating featureless high ground.
Wildlife
10 sightingsEurasian OtterMost seen around 7 PMSighting map
11 sightingsAtlantic SalmonMost seen around 7 AMSighting map
12 sightingsShort-eared OwlMost seen around 7 PMSighting map
22 sightingsWestern Barn OwlMost seen around 6 AMSighting map
27 sightingsTawny OwlMost seen around 7 PMSighting map
34 sightingsCommon KingfisherMost seen around 7 AMSighting mapSighting maps show where each species has been reported across Yorkshire Dales. Wildlife moves, so no sighting is guaranteed.
Keep exploring
ModerateMallerstang Edge and High Seat Circular11.5 km · 4.5 hr · 4.7 km awayOpen-moor climb to a broad escarpment, then a steep pathless gill descent
ModerateSmardale Gill Walk10.9 km · 4.5 hr · 7 km awayA 14-arch viaduct, beckside pasture and open fell in one figure-of-eight
ChallengingCautley Spout and The Calf Circular8.4 km · 3.8 hr · 9.2 km awayClimb beside a spectacular waterfall to the Howgill Fells' highest summit
EasyCotter Force Accessible Walk1 km · 30 min · 11.2 km awayHalf a mile of graded gravel to six gentle waterfall cascades
ModerateGreat Shunner Fell14.8 km · 5.7 hr · 12.5 km awaySteady Pennine Way climb from Hardraw to an exposed summit shelter
ChallengingMuker, Keld and the Corpse Way8.9 km · 3.5 hr · 12.9 km awayMeadows, waterfall detour and a hard climb on the old Corpse Road
ModerateSwaledale Audio Trail12.7 km · 4 hr · 12.9 km awayAudio loop past Muker's hay meadows, stone walls and Swale bridges
ModerateDent to Ribblehead Walk14.8 km · 5 hr · 13.1 km awayNine moorland miles between two railway stations, ending under the viaduct
Sight · 2.2 km awayPendragon CastleRuined Clifford stronghold beside the young River Eden in Mallerstang
Sight · 9.8 km awayButtertubs PassButtertubs Pass climbs between two dales past deep limestone potholes
Sight · 10.1 km awayWain Wath ForceBroad, low falls under limestone cliffs, right beside a Swaledale road
Sight · 10.6 km awayCautley SpoutCautley Spout, England's highest above-ground cascade, tumbles nearly 200m
Sight · 10.7 km awayCotter ForceA stile-free woodland stroll to six gentle cascades on Cotterdale Beck
Sight · 11 km awayKeldQuiet stone hamlet at Swaledale's head, ringed by waterfalls and paths
Campground · 12.1 km awayUsha Gap Farm & CampsitePitch beside a beck on a working Swaledale sheep farm
Sight · 12.4 km awayHardraw ForceEngland's highest single-drop waterfall, a ten-minute walk from the gateParkwolf’s Yorkshire Dales ranking