Aghanaglack – Tomb and River Highlights

Overview

Aghanaglack lies in the heart of the Boho area of County Fermanagh, where the conifer‑clad Ballintempo Forest meets a modest yet striking watercourse. The site is home to the Aghanaglack Dual Court Tomb, a Neolithic burial monument dating to roughly 4,000–2,000 BC, and to the Aghanaglack River, which bursts from a 1.8 km underground passage to create a dramatic 12‑metre waterfall on the popular Pollnagollum Cave Walk. Both features sit within the Marble Arch Caves Global Geopark, offering visitors a seamless mix of archaeology, geology and wildlife.

History & Significance

The tomb was first recorded in 1938 by Professor Oliver Davies, who initially mistook the mound for a simple cairn. Excavations revealed twin east‑west galleries, a roof of massive stone slabs and a surrounding mound that would have dominated the ancient horizon. Artefacts such as pottery shards, arrowheads and the skeletal remains of two children were recovered; several of these items are now displayed at the Enniskillen museum.

Dual‑court tombs are relatively rare in Ireland, making Aghanaglack an important site for understanding Neolithic ritual landscapes. The layout – two courts leading to separate burial chambers – suggests a complex ceremonial use, possibly involving seasonal gatherings.

The river’s Irish name, achadh na glaice (“field of the hollow”), reflects the valley that cradles it. Historical records from the 17th‑century Plantation era link the name to the O’Flanagan sept, who held lands at Glack. The river’s catchment lies within the karst landscape of the Geopark, where limestone passages, underground streams and surface water interact in a dynamic system.

What to See & Do

• Pollnagollum Cave Walk (Belmore Forest) – A 4.5‑mile (7 km) circular route that starts at the Boho Road car park. The trail follows the Aghanaglack River, passes the 12 m waterfall where the river resurfaces, and continues to a viewing platform on the north bank. The walk is moderate in difficulty, with some uneven sections and short ascents.
• Aghanaglack Dual Court Tomb – A short detour from the river leads to the tomb’s raised platform. Interpretive panels explain the tomb’s construction and the Neolithic community that built it.
• Brimstone Rock – A pale sandstone outcrop with a bench offering panoramic views of Cuilcagh Mountain and the surrounding lakes. Local lore records its use as a clandestine Mass Rock during the penal era.
• Mass Rock (Carrickanalter) – Another historic waypoint that marks the river’s role as a natural boundary and gathering place in the 17th century.
• Lough Blocknet – A reedy shoreline further along the trail, noted for the rare smooth stonewort plant and a good spot for quiet bird‑watching.
• Forest Interpretation Panels – Managed by the NI Environment Agency, these panels explain the geology, peat formation and historic land‑use of the area.
• Wildlife spotting – The mixed coniferous forest and riparian zones support merlins, hen harriers, red squirrels, pine martens and a variety of small mammals. Early morning or late afternoon are the best times for photography.

Seasonal Highlights

• Spring (April–June) – Wildflowers carpet the forest floor and the river flow is at its strongest after winter rains, making the waterfall especially dramatic.
• Summer (July–August) – Longer daylight hours allow the full Pollnagollum circuit to be completed comfortably; occasional summer festivals in Boho showcase traditional music.
• Autumn (September–October) – The foliage turns golden, providing striking contrast against the limestone outcrops – a photographer’s favourite period.
• Winter (November–March) – While the trail can be wet and boggy, the waterfall often creates a misty, atmospheric scene. Proper waterproof gear is essential.

Visiting Tips

• Dog policy – Dogs are permitted on the trail but must be kept on a lead to protect wildlife and other walkers.
• Footwear – Sturdy, waterproof walking shoes are recommended; the forest track includes uneven surfaces, steps and narrow gates.
• Timing – Start early in summer to avoid the peak of the day‑time heat and to secure a parking space at the Boho Road car park.
• Safety – Weather can change quickly in the bogland; carry waterproof clothing and stay on marked paths.
• Facilities – No on‑site café or toilet; the nearest amenities are in Boho village, a short drive away.

Nearby Attractions

• Ballintempo Forest – Aghanaglack Walk – The wider forest network offers additional loops, including a boardwalk through the peatland.
• Boho – Explore the historic village, its traditional stone cottages and the nearby Boa Island with its famous Janus stones.
• Crom Castle – A short drive north brings you to this 17th‑century fortified house set on the shores of Upper Lough Erne.
• Castle Archdale Country Park – Ideal for a family picnic, water‑sports on Lough Erne and a visit to the World War II museum.

Practical Information

• Opening: Open every day, free of charge.
• Typical visit length: About 45 minutes for the tomb alone; 2–3 hours if the full Pollnagollum Cave Walk is undertaken.
• Parking: Car park off Boho Road (for the cave walk) and a small lay‑by near the tomb entrance.
• Accessibility: The forest tracks are uneven and may be challenging for wheelchair users; sturdy walking shoes are recommended.
• Facilities: No on‑site café or toilet; nearest amenities are in Boho village, a short drive away.
• Safety: Weather can change quickly in the bogland; carry waterproof clothing and stay on marked paths.

Enjoy the blend of ancient stone, rushing water and the whisper of forest birds that makes Aghanaglack a uniquely immersive Irish landscape experience.