Wild Boar Fell from the Mallerstang Valley

This 13 km (8.1 mile) outing onto Wild Boar Fell is a moorland-and-ridge walk with around 500 metres (about 1,640 feet) of ascent, giving it a solid medium feel: long enough to require pacing, exposed enough to demand respect, but straightforward for prepared hikers in decent conditions. The fell rises above the Mallerstang Valley in the Yorkshire Dales National Park, with a broad, high summit plateau rather than a sharply defined peak, so the day is often more about big skies, open ground, and navigation than steep scrambling. Wild Boar Fell’s summit stands at about 708 metres (2,323 feet), and the classic line from the valley climbs by bridleway from the Hazelgill side before continuing over the high ground. (yorkshiredales.org.uk)

The start is best described as near Hazelgill Farm, Mallerstang, Kirkby Stephen, Cumbria, on the eastern side of the Mallerstang Valley. If you are arriving by car, Kirkby Stephen is the main nearby service town, and the valley approach is usually made via the minor roads south of the town toward Outhgill and Aisgill. Parking options in this area are limited and rural, so it is worth checking access arrangements in advance and arriving early. By public transport, Kirkby Stephen is the most practical hub for buses and road access, while the Settle–Carlisle railway also runs through the valley, making rail-based planning possible if you are linking the walk with a station approach or a linear variation. The railway is one of the defining features of the valley landscape. (yorkshiredales.org.uk)

The opening section usually begins gently enough on tracks and pasture, but the character changes quickly once the route leaves the enclosed valley and starts climbing onto open fell. Over the first few kilometres, expect a steady ascent rather than one brutally steep pull, with the height gain accumulating as you work up from farmland into rougher upland terrain. In clear weather, the route can feel obvious on the main line of ascent, but once you reach the broad upper ground the fell’s shape becomes more deceptive. The summit area is expansive, and in mist it is easy to drift off line, so carrying and knowing how to use HiiKER is especially important here. (yorkshiredales.org.uk)

Terrain and what to expect

Underfoot, this is a mixed walk. Lower down you can expect farm tracks, grassy paths, and gates or wall crossings depending on the exact line taken. Higher up, the ground becomes more typical Pennine upland: rough grass, peat, stony sections, and potentially wet patches around the plateau. After rain, some areas can be boggy and energy-sapping, and in colder months the summit ridge can be windy, icy, or holding snow. The broad top means exposure is a bigger factor than technical difficulty. Waterproof layers, warm clothing, and spare insulation are sensible even on a mild valley morning, because conditions can feel very different once you are above 600 metres (1,970 feet). (yorkshiredales.org.uk)

One of the memorable features of Wild Boar Fell is its collection of large cairns and stone structures, sometimes called “stone men,” which stand out on the high ground. These add character to the ridge and can help confirm your position, though they should not be relied on as your only navigational aid. Sand Tarn lies close to the summit area, roughly 300 metres west of the top, and gives the plateau an even wilder feel. Views, when the weather cooperates, stretch across the Howgills, the Pennines, the Yorkshire Dales, and toward the Lake District. (yorkshiredales.org.uk)

Landmarks, nature, and wildlife

The Mallerstang Valley itself is one of the great landmarks of the day. It has a strikingly remote character, with Wild Boar Fell on one side and Mallerstang Edge on the other, while the young River Eden begins high in the valley and flows northward below. The landscape is shaped by glaciation and by the contrast between limestone and gritstone, which helps explain the dramatic valley form and the broad, high fell tops. (yorkshiredales.org.uk)

Wildlife is typical of northern English uplands. Depending on season and luck, hikers may see meadow pipits, skylarks, curlews, and other moorland birds, with raptors occasionally using the updrafts along the fell sides. Sheep are a constant presence on lower and mid-level ground, and the open moor can support hardy upland plant communities adapted to wind and poor soils. In spring and early summer, birdlife often provides more of the