Slieveroe

📍 County Kildare, Kildare

🏛️ Attraction

Last updated: 28 April 2026

Overview

Slieveroe is a modest mountain summit perched in the heart of County Kildare, forming part of the Dublin/Wicklow range. At 332 metres (1,089 ft) high with a prominence of 100 metres, it ranks as the second‑highest point in the county and is listed as a Hu (Hundred Metre) summit in the British‑Irish hill database. The hill’s grid reference is N952141, and it sits just south‑west of its parent summit, Saggart Hill (Cnoc Theach Sagard).

The summit is easily recognisable from the surrounding countryside and is a favourite waypoint for walkers seeking a quick ascent with rewarding views of the rolling Wicklow hills, the River Liffey valley, and on clear days, the distant Dublin skyline.

Name & Language

The Irish name for Slieveroe is An Sliabh Rua, meaning “the red hill”. The colour reference is thought to derive from the reddish‑brown heather that blankets the summit in late summer.

History & Background

While Slieveroe does not boast a dramatic historic narrative, its name reflects the Irish tradition of linking landscape to language; “Slieve” (Sliabh) simply means “mountain”. The hill has long served as a natural landmark for local farmers and travellers moving between the lowlands of Kildare and the upland routes of Wicklow.

In modern hill‑walking circles, Slieveroe gained recognition through the Database of British and Irish Hills, which records its elevation, prominence, and classification. It also appears on the popular Discovery Map 56, a detailed topographic guide covering the Dublin/Wicklow area, making navigation straightforward for both seasoned hill‑walkers and families exploring the region for the first time. MountainViews lists Slieveroe among 116 nearby features and notes its nickname “The Great Wall of Wicklow Gorse” because of the extensive gorse covering the ridge.

Access & Transport

The most convenient starting point is the public car park in the village of Saggart, a short 5‑minute walk to the trailhead. For those using public transport, Saggart is served by the Luas Red Line (Saggart stop) and several Dublin Bus routes (e.g., 210, 211) that connect to the village centre. From the Luas stop, it is a 10‑minute walk to the parking area.

Dogs are welcome on the paths, but owners should keep them on a lead during the breeding season for ground‑nesting birds.

Walking Routes

Two main, unmarked routes lead to the summit, both listed on Peakery:

  • Saggart Village Approach – a low‑gradient, well‑trodden farm track that winds through mixed woodland before opening onto heathland near the top. The route is about 2.5 km (round‑trip) and typically takes 45‑60 minutes.
  • South‑west Approach – a steeper, less‑used track that climbs the hill’s flank, offering a slightly more challenging experience. This route is roughly 2 km round‑trip and takes 40‑55 minutes.

Both routes are suitable for families with older children and casual walkers, though sturdy walking shoes are advisable, especially after rain when the ground can become soft.

Seasonal Highlights

Peakery’s data shows that the hill is most frequently climbed in January and July. January climbs reward walkers with crisp, clear air and the occasional frost‑kissed heath, while July offers long daylight hours and the chance to see the surrounding wildflowers in full bloom. Late spring (May‑June) is particularly good for spotting the hill’s purple‑blue heather and for photographing the sunrise over the Dublin Mountains.

Flora & Fauna

The summit area is characterised by low‑lying gorse (Ulex europaeus) and heather, giving the hill its nickname “The Great Wall of Wicklow Gorse” on MountainViews. Birdwatchers may spot meadow pipits, skylarks, and, on rarer occasions, the occasional buzzard soaring on thermals above the ridge. In early summer, the heather produces a profusion of purple flowers, while the gorse bursts into bright yellow later in the season.

Practical Information

Slieveroe is free to access and has no formal opening hours; the hill is open year‑round. As a public right‑of‑way, walkers can approach from any direction, though the most convenient parking is available at the nearby Saggart village car park, a short 5‑minute walk from the trailhead.

ItemDetails
Elevation332 m (1,089 ft)
Prominence100 m
Grid ReferenceN952141
ClassificationHu (Hundred Metre)
Recommended MapDiscovery Map 56
Typical Climbing MonthsJanuary, July
Number of Recorded Routes2
AdmissionFree
ParkingPublic car park at Saggart (free)
Nearest Public TransportLuas Red Line – Saggart stop; Dublin Bus 210/211

The hill’s terrain is generally gentle, making it suitable for families with older children and casual walkers. The paths are mostly grass and low‑lying scrub; sturdy walking shoes are advisable, especially after rain when the ground can become soft.

Because the summit is not staffed, there are no facilities such as toilets or a visitor centre on site. Visitors should therefore plan accordingly, carrying water and any necessary supplies. Mobile reception can be patchy, so a printed map or downloaded GPS track is recommended.

Nearby Attractions

Slieveroe sits on the edge of the Dublin/Wicklow range, making it an ideal base for exploring the surrounding area:

  • Blessington Lakes – a short 5‑km drive south, offering water sports, fishing and lakeside walks.
  • Bog of Allen – one of Ireland’s largest raised bogs lies to the west; several boardwalk trails are accessible from nearby towns such as Ballymore‑Eustace.
  • Hill of Allen – the historic summit with its ancient tower is only 8 km north‑west and provides another rewarding hill‑walk.
  • Donadea Forest Park – a 2‑km drive east, featuring woodland trails, a lake and a historic castle.

These sites can be combined into a full day of outdoor activity within a compact geographic zone.


Slieveroe may be modest in height, but its position at the edge of the Dublin/Wicklow range makes it a perfect introduction to Irish hillwalking. Whether you are ticking off county high‑points, seeking a quiet spot for a picnic, or simply craving a short escape from the bustle of nearby towns, the summit delivers a satisfying blend of natural beauty and accessible adventure.