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Mountain Biking in Donegal

Donegal is the wildest county in Ireland for MTB. Errigal, the Derryveagh range, the Bluestacks, Inishowen and miles of Coillte forestry along the Wild Atlantic Way. This is the honest guide.

Donegal · Ireland · by David English (@d.emtb)

I’m David. I’m 13, I live in Clonmel, and Donegal is the part of the island that’s furthest from me — and one of the most distinctive for mountain biking. This is the honest Donegal MTB hub for anyone heading north-west.

Why Donegal is the wildest MTB county in Ireland

Donegal is the most north-westerly county on the island. It contains the Derryveagh Mountains (with Errigal), the Bluestack Mountains, the Inishowen peninsula with its own upland (including Slieve Snaght), and a coastline that stretches further than most countries’. The MTB picture in Donegal is similar to Kerry — plenty of upland, much of it walking country or working land, with Coillte forestry providing the legitimate MTB ground in the valleys and lower slopes.

Donegal doesn’t have a dedicated trail centre at the scale of Ballyhoura, Rostrevor or Castlewellan. It does have remoteness, weather, light, and some of the most beautiful country in Europe to ride through. Donegal is for the rider who wants to put miles in through real scenery, not stack laps at a trail head.

The Bluestack Mountains

The Bluestacks (Cruacha Gorma) run east-west across central Donegal, the largest contiguous upland in the county. The range rises to Croaghgorm (674m). Coillte has plantations on the lower slopes — the legitimate MTB ground. The high peaks are walking country on landowner-agreed access. Use the lower Bluestack forestry for serious riding days; treat the summits as walking-only.

Glenveagh National Park

Glenveagh covers the heart of the Derryveagh Mountains, including the Glenveagh valley, Lough Beagh, and the slopes of Slieve Snaght (the Inishowen one is separate). It’s a national park — same access rules as Wicklow Mountains and Killarney National Parks. Cycling access is restricted to specific designated routes. The Glenveagh estate road is one of these and a classic gentle ride through the centre of the park. The wider mountain ground is walking-only. Use NPWS’s current Glenveagh information for what’s currently bike-accessible.

Errigal and the Derryveagh range

Errigal (752m) is the famous quartzite cone on the western edge of the Derryveaghs. It’s walking country — the standard ascent is a walking trail, not an MTB route. Don’t ride Errigal. The wider Derryveagh range and the surrounding forestry give plenty of legitimate riding ground; the high peaks are off-limits to bikes.

Inishowen peninsula

Inishowen is the northernmost peninsula in Ireland, sticking up between Lough Foyle and Lough Swilly. It has its own upland (Slieve Snaght 615m), its own Coillte forestry, and a coastline that includes Malin Head, the northernmost point of the island. For MTB, the Coillte plantations scattered around the peninsula are the practical ground. Inishowen also has a small but real local riding scene; the rolling country is well-suited to long mileage days.

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Donegal Coillte forestry — the practical MTB ground

Across Donegal, Coillte plantations provide most of the legitimate MTB ground. The forestry around Letterkenny, the Finn Valley, Ballybofey/Stranorlar, and the southern Bluestacks all give rideable fire-road networks. Less famous than Glenveagh or the Derryveaghs but reliable, accessible and bike-legal. Coillte’s current forest-recreation maps are the right source for entry points.

Letterkenny as a base

Letterkenny is the obvious Donegal MTB base — it’s the largest town, central within the county, and within an hour of most of the riding ground. Independent bike shops in the town; phone ahead to confirm they service MTB. From Letterkenny you’re 30 minutes to Glenveagh, 45 to the Bluestacks, 1 hour to Inishowen’s upland.

Getting to Donegal for an MTB trip

  • From Dublin: 3 hours 30 to Letterkenny via M1 and N15.
  • From Belfast: 2 hours 30 to Letterkenny via Strabane.
  • From Galway: 3 hours to Donegal town via N17/N15.
  • From Cork: 5 hours — a long drive, plan accordingly.
  • From Derry city: 30 minutes to Letterkenny; Derry/City of Derry airport is the closest landing.

Trail types in Donegal

Donegal riding is overwhelmingly natural / fire road / wild ground. You climb forestry, you link tracks, you cover real distance. There isn’t machine-built singletrack at the trail-centre scale here. The right bike is a capable hardtail or a 120-150mm full-suspension trail bike. Tyres for wet ground are non-negotiable — Donegal rainfall is high and the peat-and-soil mix on the lower slopes holds water for most of the year. See my tyres page for the picks.

The right kit for Donegal weather

Donegal weather is Atlantic-driven and changes fast. Even in summer you can ride into sideways rain at exposed elevation. Always carry waterproofs, a backup base layer, and a real emergency kit if you’re going beyond the lower forestry. Phone coverage in the wilder parts of the Derryveaghs and Bluestacks is patchy. Don’t go out solo into the deep country without telling someone the route.

When to ride Donegal

May through September is the realistic prime window. June and July give the longest light — the far north is far enough that you have rideable evenings until 10pm in midsummer. Winter rides on the lower Coillte forestry are possible but the high ground is harsh and exposed. October through March needs serious kit and a good weather window.

Donegal as part of a north-Atlantic MTB trip

Donegal works as the endpoint of a Wild Atlantic Way road trip on bikes — starting in Cork or Kerry, working north through Galway, Mayo, into Sligo and Donegal. Donegal also pairs naturally with Down for a north-of-Ireland weekend, although the drive across the country is long. From the south the trip works as a serious week, not a weekend.

Donegal MTB — the honest take

Donegal is the most remote MTB county in Ireland. There’s no signature trail centre. What there is, is some of the wildest, most spectacular country to put a bike on in the British Isles. Don’t come here for graded loops; come for the setting, the light, the weather, and the feeling of riding through real Irish mountain country in one of the most distinctive corners of Europe. Bring waterproofs, bring a map, and don’t go up high without knowing what you’re doing. Compared to my home Tipperary riding, Donegal is wilder, wetter, more remote, and the views are out of a different category.

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