Blackstairs Mountains, Co Carlow
Blackstairs Mountains, Co Carlow Courtesy Brian Morrison Photography, ©Tourism Ireland

Blackstairs Mountains

📍 Various, Various

🏛️ Attraction

Last updated: 28 April 2026

Overview

The Blackstairs Mountains run north‑south along the natural border between County Carlow and County Wexford in the southeast of Ireland. The range is dominated by Mount Leinster, the highest summit at 795 m, which offers sweeping panoramas of the Barrow Valley, the Wicklow Mountains and, on a clear day, the Irish Sea. A second‑rank peak, Blackstairs Mountain, reaches 735 m and is marked by a metal cross that commemorates two tragic aircraft crashes – a German bomber in 1941 and a Cessna 182 in 1983.

PeakHeight (m)County
Mount Leinster795Carlow/Wexford
Blackstairs Mountain735Carlow/Wexford
Black Rock Mountain599Carlow
Knockroe540Carlow
Slievebawn520Carlow

The mountains are a granite core capped by peat‑covered uplands where granite meets slate, creating a dramatic geological contrast that shapes the landscape. The southern ridge, known locally as Cahir Roa’s Den, showcases a striking horn‑back ridge of slate.

Geology & Landscape

The bedrock consists of dark‑grey semi‑pelitic schist and psammitic schist, overlain in places by extensive peat and dry‑heath. This juxtaposition of granite and slate gives the southern ridge its distinctive, sharply‑cut profile. Roughly 17 % of Ireland’s total dry heath is found here, supporting a mosaic of ling heather, mat‑grass, crowberry, bilberry and bell heather.

History

The Blackstairs have long been a refuge for those seeking concealment. During the 1798 Rebellion, the rugged terrain harboured insurgents and became a symbol of resistance. The range’s name derives from the ancient Irish province of Laighin – the kingdom whose king was said to be buried beneath a cairn here before the Christian era.

A poignant reminder of more recent history sits 30 m east of the Mount Leinster summit: a metal cross marking the sites of two fatal aircraft crashes. The first, a German bomber, went down in 1941; the second, a Cessna 182, crashed in 1983. Both incidents are commemorated by the cross, offering a solemn viewpoint for visitors.

Legends and Cultural Highlights

Cahir Roa’s Den, the slate‑capped southern ridge, is named after Cathaoir na gCapall, a 18th‑century chieftain‑turned‑rapparee who was reputed to hide stolen horses there. Local folklore claims a treasure is hidden in a cave on the ridge. The area also features the Nine Stones, a line of prehistoric standing stones that line the ridge and are thought to have marked ancient travel routes.

Every year the community traditionally climbs the ridge on Mountain Sunday, the last Sunday of July, a custom that dates back to the 18th century and celebrates the mountain’s cultural significance.

What to See & Do

Walking and Hiking

The Blackstairs are a hiker’s playground. The Blackstairs Mountain Loop Walk (13.5 km, roughly five hours) climbs to the summit of Blackstairs Mountain and returns via quiet country roads near Enniscorthy. Detailed maps and GPS tracks are available through the ActiveME app, and the route is praised for its expansive views of green fields and distant hills.

For a shorter ascent, the Mount Leinster Trail leads to the highest point, where a viewing platform provides 360° vistas. The trail passes the historic cross and offers opportunities to spot golden plovers, hen harriers and peregrine falcons soaring above the heath.

Long‑Distance Trails

The South Leinster Way, a 104 km long‑distance walking route from Kildavin (Co Carlow) to Carrick‑on‑Suir (Co Tipperary), traverses the Blackstairs range, giving walkers the chance to combine a day‑walk with a multi‑day trek. Sections of the Way follow the same ridge used by the Loop Walk, so hikers can link the two routes.

Eco‑Trails and Heritage Sites

The Blackstairs Eco Trail is a two‑hour guided walk that weaves through stone dolmens and court tombs, making it a must‑see for history enthusiasts. Along the way, interpretive signs explain the ancient burial sites and the unique dry‑heath ecosystem that covers roughly 17 % of Ireland’s total dry heath.

Flora and Fauna

The upland heath supports ling heather, mat‑grass, crowberry, bilberry and bell heather. Rare plant species such as bird’s‑foot and cranberry (scarce in County Wexford) add botanical interest. In spring wild‑garlic carpets the dry‑stone walls, a highlight for foragers.

Birdwatchers can spot golden plovers, merlins, red grouse and wheatears, while mammals include Irish hares, red foxes, badgers, stoats, Sika deer and small herds of feral goats.

Guided Experiences

Blackstairs Eco Trails, based in the shadow of Mount Leinster near Borris, Carlow, offers a suite of curated activities:

  • Foraging Workshops (4 h, €75 per person) teach safe wild‑food identification and feature a three‑course organic lunch. Book now
  • Fungi Workshops (5.5 h, €110 per person) explore edible and poisonous fungi. Book now
  • Remarkable Celtic Trees (3.5 h, €65 per person) guide visitors through native tree habitats.
  • Stargazing Sessions provide a cosy night under the stars with hot chocolate and marshmallows.
  • Luxury Glamping in award‑winning Shepherds’ Huts offers a rustic yet comfortable stay.

Nearby Accommodation

For those wishing to extend their stay, Mount Brandon Cottages in Graiguenamanagh (County Kilkenny) overlook the Blackstairs range and provide fully equipped three‑bedroom cottages with private parking. Woodbrook House, a Georgian estate west of Enniscorthy, sits in the shadow of the mountains and offers spacious rooms, a walled garden and direct access to mountain walks.

Practical Information

The Blackstairs Mountains are freely accessible; there is no admission fee. Parking is available at several trailheads, the most convenient being the Borris Eco Centre car park (off the R730) and the Scullogue Gap car park (coordinates S 81 37 8 , 47 88 4). Both provide short, well‑signposted routes to the ridge.

Getting There

The range is reachable by road from Carlow (A5), Wexford (N11) and Enniscorthy (R730). Public transport options include Bus Éireann services to Carlow and Enniscorthy, with onward local taxis to the trailheads. The nearest towns – Carlow, Borris and Enniscorthy – all have amenities such as cafés, shops and B&Bs.

Accessibility & Family‑Friendly Tips

  • Dogs are welcome on the trails but should be kept on a leash during the breeding season (March‑July) to protect ground‑nesting birds.
  • The Loop Walk is moderate in length and suitable for older children; the shorter Mount Leinster Trail is ideal for families with younger kids.
  • All routes are open year‑round, but the summit can be windy; bring waterproof clothing and sturdy boots.
  • Winter brings occasional snow, offering a different, quieter experience for those prepared for colder conditions.

Safety & Navigation

For navigation, the ActiveME app provides offline maps and GPS tracks for the Loop Walk and other routes. Detailed route descriptions are also available on the Blackstairs Eco Trails website. Mobile signal can be patchy at the summit, so carry a map or downloaded route.

Booking

If you plan to join a workshop or stay in the glamping huts, advance booking is recommended, especially during the summer months. Workshops can be booked directly via the links above; glamping reservations are handled through the Eco Trails booking page.

For further information, visit the official Blackstairs Eco Trails site or the Wikipedia entry: