Overview
The Seven Sisters ridge is a striking north‑south chain in the Derryveagh Mountains of County Donegal. It strings together seven peaks – Muckish (666 m), Crocknalaragagh (471 m), Aghla Beg (602 m), Aghla More (581 m), Mackoght (Little Errigal), Ardloughnabrackbaddy, and the iconic Errigal (751 m). The line runs from the rugged limestone cliffs of Muckish in the north to the towering silhouette of Errigal in the south, offering a dramatic mix of open bogland, quartzite scree and panoramic sea views.
History & Background
The range is steeped in local heritage. The Miners Path at Muckish’s foot follows routes once used by slate‑quarry workers, while the ruins of Altan Farm on Altan Lake whisper of a bygone agricultural settlement. Gaelic place‑names reveal the landscape’s ancient role: Aghla (from Aghlas) means “hill”, An Eachla Mhór translates as “great lookout point”, and An Cnoc Fada simply means “the long hill”. Droving routes criss‑crossed Aghla Beg’s slopes, and the peaks served as natural navigation aids for shepherds and fishermen. An Cnoc Fada’s surrounding townland of Knockfadda holds two 19th‑century forts, evidence of long‑standing human activity on the ridge.
What to See & Do
- Seven Sisters Long‑Distance Walk – Begin at the Miners Path, summit Muckish, traverse Crocknalaragagh, Aghla Beg, Aghla More and Mackoght, and finish at the Errigal car‑park. The route showcases the full diversity of the range, from limestone cliffs to heather‑covered summits.
- Aghla More & Aghla Beg Circuit – A 12.4 km loop starting from a lay‑by on the R256. The trail links the twin summits of Aghla Beg (trig point and stone cairn) with Aghla More’s “great lookout” panorama, offering 360° views of the Donegal Highlands and Atlantic coast.
- Crocknalaragagh Loop – A 12.8 km, 2,047 m ascent walk that starts from a small car‑park near Falcarragh. The summit provides sweeping vistas over Donegal Bay and the neighbouring Seven Sisters peaks.
- An Cnoc Fada & Crockballaghgeeha Loop – A 7.4 km circular walk on the Crockfadda ridge (grid ref B949164, OS sheet OSi50: 001). Hikers encounter the historic forts of Knockfadda and enjoy the ridge’s gentle, elongated profile.
- Summit Highlights – Each peak bears a trig point (Aghla Beg, Aghla More) or cairn, perfect for photography. From Aghla More you can spot Errigal’s iconic silhouette; from Crocknalaragagh the Atlantic stretches to the horizon.
Practical Information
- Access Points:
- Muckish: Miners Path car‑park (north end).
- Aghla Beg / Aghla More: Lay‑by on the R256.
- Crocknalaragagh: Small car‑park a few kilometres east of Falcarragh.
- An Cnoc Fada: Parking at the start of the An Cnoc Fada loop (grid B949164).
- Navigation: Grid references – Crocknalaragagh 55°04’60”N 8°01’60”W (lat 55.082956, lon ‑8.025398); An Cnoc Fada on OS map OSi50: 001. The Seven Sisters ridge is well‑marked with cairns and occasional way‑markers.
- Difficulty & Timing: Full Seven Sisters ridge is a full‑day hike (≈ 25 km, 2,500 m total ascent). Individual loops range from 7–13 km with moderate elevation gain, suitable for fit walkers. Weather can change rapidly; waterproof boots and layers are essential.
- Facilities: Limited facilities on the ridge; carry water and food. Parking is free at most trailheads but can fill quickly in summer, so arrive early.
- Best Season: Late spring to early autumn offers the clearest views and drier ground. After rain, boggy sections may appear on Aghla Beg and An Cnoc Fada.
- Safety: Mobile signal is patchy; a map, compass and a fully charged phone are recommended. Inform someone of your intended route and expected return time.
Getting There
The Seven Sisters are most easily reached by car via the R256, which runs between Letterkenny and Falcarragh. The nearest sizable town is Letterkenny (approximately 30 km to the south), where visitors can find fuel, food and accommodation. Public transport to the trailheads is limited, so a private vehicle is recommended.
Nearby Attractions
If you have extra time, consider a short drive to the Bluestack Mountains to the east, another spectacular range offering additional walking options and stunning scenery.
Enjoy the blend of natural grandeur and cultural memory that makes the Seven Sisters one of Ireland’s most unforgettable mountain experiences.