Black Hill & Black Mountain — 16.8 km Running Route

Explore the Black Hill & Black Mountain

Location: Llanigon, Brecon Beacons, Wales

Explore the wild beauty of the Brecon Beacons with this challenging 16.8 km loop from Llanigon. Starting near the Hay Bluff car park, you’ll ascend Black Hill, enjoying exposed ridge running with stunning views on clear days before descending into the valley. This route offers a taste of rugged Welsh terrain and is perfect for experienced runners seeking a demanding trail adventure.

The journey continues with a steep climb to Black Mountain South Top Summit at 637m, followed by a gradual ascent to Twyn Lleach (Black Mountain) at 704m. With substantial ascent and sections above 500m, this route is ideal for hill training, ultramarathon preparation, or simply immersing yourself in spectacular upland scenery. Be prepared for changeable weather conditions in this exposed environment.

Common questions

How long is this route?

It's a 16.8 km loop in Llanigon, Brecon Beacons, Wales with around 595 metres of total ascent.

How long will it take me to run it?

Use the 'Your time estimate' panel at the top of this page — it predicts your finish time for this exact route from your age, sex and most recent benchmark, accounting for distance, ascent and surface.

Is it hilly?

Yes. It rates 4 out of 5 on our hill scale — a hilly route with sustained climbing. About 35 metres of climb per kilometre, 595 metres in total.

What's the surface like?

It's an off-road route — trail shoes are recommended and underfoot can be soft or rocky in places.

Black Hill & Black Mountain — 16.8 km Running Route

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Explore the Black Hill & Black Mountain

Common questions

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