Trail Running > Routes > Brecon Beacons Routes > The Blorenge
A distinctive 11 km trail run across the diverse post-industrial landscape and wild moorland above Abergavenny.
Why run this trail?
Rising above the towns of Abergavenny and Blaenavon, the domed hill of Blorenge (561 m) offers one of the most engaging trail running landscapes in the Brecon Beacons.
This classic fell running route explores winding mountain tracks, old tramways and open heather moorland within the Blaenavon Industrial Landscape, a UNESCO World Heritage Site. The remnants of iron and coal extraction are everywhere, but the spoil heaps, open pits and old workings have been reclaimed by nature to create a unique and highly runnable environment.
The run starts from Keeper’s Pond – built to supply water to a nearby forge – and quickly drops into a small valley before circling the northern foot of the mountain on a fast section of old tramway. A small lake at the Punchbowl – tucked into a wooded hollow once infamous for bare-knuckle fights – marks the start of a stiff climb to the summit: an open plateau of limestone and heather with expansive views across Abergavenny, the Black Mountains and the Central Beacons.
Despite its accessibility and popularity, it’s still possible to find a quiet moment on Blorenge – I ran long sections in complete solitude and had the summit entirely to myself on a breezy afternoon in April. This is a compact and fluid route with a strong sense of identity – where an industrial past and the wild landscape blend into something quietly distinctive.
Keeper’s Pond to Hill’s Tramroad
The run begins at the car park by Pen-ffordd-goch Pond (Keeper’s Pond), just off the B4246. At around 470 m altitude, you’re already rewarded with dramatic views across to Sugar Loaf and the Black Mountains.
Pass the information board and follow the gravel path around the left-hand side of the pond. After crossing a wooden bridge, turn left downhill to meet the road. Cross it and turn left for 50 m, then take a grassy track off to the right.
After about 150 m, bear right where the track splits and descend on a narrow track through the heather into the valley. The path widens at the bottom – turn right to follow it into the cleft of the gorge. Cross a stream and join an old tramway cut into the hillside beneath a canopy of trees.
It’s worth pausing here to look back – the scars of past industry are clearly visible, etched across what at first appears to be a natural hillside.
Hill’s Tramroad to the Punchbowl
Continue on the obvious path to reach a cluster of old industrial workings and a large rocky mound known locally as the “Slag Monster” – a heap of furnace waste tipped down the hillside, its iron-rich composition still visible.
You’ll soon meet the road again – cross over and rejoin the tramway as it contours across the lower slopes of Blorenge, with excellent views towards Sugar Loaf. A section of limestone sleepers – laid by hand over 200 years ago – adds a nice historical touch underfoot, and you’ll also pass a small tunnel opening buried into the hillside.
As you round into Cwm Craf, the views shift constantly across Abergavenny and the shapely, wooded knoll of The Skirrid. A narrow track branching sharply off to the right marks the route of a local fell race – a very succinct route to the summit if you fancy a challenge!
The main path continues past woodland and dips down to the shores of the Punchbowl.
The Punchbowl to Blorenge Summit
The Punchbowl is a compact glacial basin with a small man-made lake that gently hums with bird and insect life. It’s a tranquil spot that belies its past as a gathering place for illegal bare-knuckle fights in the 19th century. The only thing punchy about it now is the steep climb out of the hollow, rising through beech trees.
The gradient soon eases and the terrain opens out. Pass through a gate to join a small lane by a dry stone wall, then follow the wall as it curves right onto a broad grassy track climbing steadily through bracken.
You’ll emerge onto an open escarpment with fine views across the Black Mountains and Abergavenny below.
At a small brick building with solar panels, turn away from the escarpment and follow the track to the clear summit line. This becomes a gravel path cut with cross-drains – an easy 2 km run to the summit across open moorland.
The summit itself is a wide plateau marked by a trig point and a sprawling limestone cairn spilling into the heather.
Views are extensive in every direction – west to the Central Beacons (including Pen y Fan and Corn Du), with the crags of Craig y Cilau framing the Usk Valley in the foreground and north across the Black Mountains, rolling into the distance above the town of Crickhowell.
Blorenge Summit to Keeper’s Pond
From the summit, follow the clear track for 1.5 km to Fox Hunter car park – with the prominent transmitter masts looming overhead.
Turn left out of the car park onto the rough lane. After 400 m, take a narrow track off to the right through the heather. This undulating, twisting path threads through old open pits – now cloaked in heather – before returning you to Keeper’s Pond.
It’s a fitting place to pause for a drink and a final opportunity to admire those views – a seamless blend of man-made and natural history.
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Disclaimer
All routes and GPX files are provided as a guide only. Conditions, rights of way, and landmarks may change. Always carry an up‑to‑date map and use your own judgement. See the Trail Run Disclaimer page for details.