Overview
The Hill of Allen (Cnoc Alúine) is a modest volcanic rise that dominates the western edge of the Bog of Allen, a vast raised peatland that stretches across Kildare, Offaly and Laois. At 696 ft (212 m) above sea level the hill offers one of the most dramatic outlooks in the Irish midlands – a sea of dark peat punctuated by the occasional glint of farmsteads and the distant silhouette of the Wicklow Mountains. Its most recognisable feature is the circular stone tower built between 1859 and 1863 by Sir Gerard George Aylmer, a classic 19th‑century folly that crowns the summit. The site is a magnet for folklore enthusiasts, hikers, and anyone who wants to stand where the legendary hunter‑warrior Fionn mac Cumhaill (Finn McCool) was said to have held court with his Fianna.
History
The hill’s name gives the Bog of Allen its own moniker; the ancient Irish called the hill Cnoc Almaine, later Cnoc Alúine. Mythology records the hill as the stronghold of Fionn mac Cumhaill, who allegedly built a fortress here and used the surrounding flatlands as a training ground for his giant warriors. In recorded history the hill witnessed the Battle of Allen in 722 AD, when the forces of the High King Fergal mac Máele Dúin clashed with the Leinstermen led by King Murchad mac Brain Mut.
The present tower is a product of Victorian romanticism. Sir Gerard George Aylmer, 9th Baronet of Donadea, commissioned the circular stone folly in 1859; it was completed in 1863. The workmen’s names are still inscribed on the steps, a tangible reminder of the labour that shaped the monument. During construction a large coffin containing human bones was uncovered; local lore claimed they were the remains of Finn mac Cumhaill, and the bones were re‑interred beneath the tower.
In the 21st century the hill is part‑owned by Roadstone Dublin Limited, and extensive quarrying on the western flank has altered the hill’s profile. A 50‑year quarrying licence, granted in 2008, allows continued extraction under strict conditions set by Kildare County Council.
What to See & Do
- Climb the tower – The stone steps wind around the interior of the folly, offering a modest workout and rewarding you with 360° views from the top platform. On clear days you can see the Curragh plains, the town of Newbridge, and, far to the east, the silhouette of the Dublin Mountains.
- Follow the summit trail – A well‑marked path, suitable for families, leads from the car park to the tower. The trail skirts the edge of the quarry, providing a striking contrast between natural peatland and industrial scar.
- Explore the folklore – Information boards near the base recount the legends of Finn mac Cumhaill, the Fianna training grounds, and the 722 AD battle. The site is a perfect spot for a quick storytelling session with children.
- Photography – PeakVisor notes the “perfect light time” for photos is 05:43‑07:13 am (sunrise) and 17:53‑19:23 pm (sunset). The tower’s silhouette against the pink‑orange sky makes for iconic shots.
- Nearby attractions – A short drive brings you to Lullymore Heritage Park, Pollardstown Fen, and the historic Grey Abbey, all of which deepen the experience of Kildare’s natural and cultural heritage.
Events & Seasonal Highlights
- St Brigid’s Day illumination – Since 2022 the hill is lit on the eve of St Brigid’s Day (31 January) and again on 1 February. The tower glows from 17:00 to midnight, a beacon visible for over twenty miles. Past performers have included local singer‑songwriter Luka Bloom and soprano Celine Byrne.
- Special lighting ceremonies – Occasionally the site hosts one‑off cultural events, such as the 2023 “Mid‑Winter Light Festival” which featured a short acoustic set and a community poetry reading. These events are free and streamed live on the Into Kildare Facebook page.
Practical Information
Opening hours (all year unless otherwise announced):
| Day | Hours |
|---|---|
| Monday | 10:00‑18:00 |
| Tuesday | 10:00‑18:00 |
| Wednesday | 10:00‑18:00 |
| Thursday | 10:00‑18:00 |
| Friday | 10:00‑18:00 |
| Saturday | 10:00‑18:00 |
| Sunday | 10:00‑18:00 |
Admission – Free entry to the hill and tower. No tickets are required for the illumination events; however, during the lighting ceremony public access to the summit may be restricted for safety, and the event is streamed live on the Into Kildare Facebook page.
Getting there
- By car – From Dublin take the M7 (Junction 9) towards Naas, continue on the N7, then follow the N78 for about 10 km. Turn left onto the R414 and follow signs for the Hill of Allen. A small free car park sits at the base of the tower.
- Public transport – Trains run from Dublin Heuston to Kildare (≈30 min). From Kildare station a local taxi (≈€20‑€30) will bring you to the hill, or you can check limited bus services to Carrick.
- Walking – For the adventurous, a 1.5 km walk from the main road in Carrick takes roughly 30 minutes and follows a gentle ascent to the summit.
Facilities – Toilets and a small refreshment kiosk are available near the car park during the main visiting season. The site is open year‑round, but the kiosk may close in winter.
Accessibility – The path to the tower is paved for the first 200 m; the final ascent involves uneven stone steps. Visitors with limited mobility may find the summit challenging but can enjoy the surrounding views from the base.
Safety notes – Quarrying activity on the western side means that part of the hill’s profile is steep and fenced off. Stay on marked routes and respect any signage.
Nearby Heritage Sites
The Hill of Allen sits within a landscape rich in ancient monuments. Just a short drive north lies Dún Ailinne, the former royal hill‑fort of Leinster, offering guided walks and interpretive panels that complement the mythic atmosphere of Allen. To the south, the Donadea Forest Park provides extensive woodland trails and a historic castle, making it an ideal addition to a day exploring Kildare’s heritage.