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    Pen Cerrig-Calch and Black Mountains Walk

    This reflects the 10Adventures difficulty rating for each route. We aim to keep ratings consistent across regions.
    This reflects the estimated time the majority of users will take on this trail. If you are slower, add time to the top-end figure. If you are fast, then you may complete this route faster than this time range.
    This reflects the return distance of this route as measured by the GPS file.
    14.0 km
    This reflects the total elevation gained throughout this route as measured by the GPS file. This includes all ascents and descents, and is higher than what is quoted in most route guides, which simply measure the distance between the starting-point and high-point of the route.
    752 m
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    Directions to Trailhead

    The Pen Cerrig-Calch and Black Mountains Walk is a fantastic adventure in Brecon Beacons National Park that will allow you to explore the lesser-known Black Mountains in the eastern part of the park. While out walking the trail, you will climb uphill through the mountainous terrain for stunning views overlooking the Welsh landscape, before traversing the summit of Pen Allt-Mawr, Pen Cerrig-Calch, and Crug Hywel. This is a great mountain adventure if you are looking to get away from the crowds on the central beacons.

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    Route Description for Pen Cerrig-Calch and Black Mountains Walk

    If you are looking to enjoy the natural beauty of South Wales and Brecon Beacons National Park without the crowds that can usually be found on more popular routes like Pen-y-Fan, then the Pen Cerrig-Calch and Balck Mountains Walk is the perfect route.

    Setting out from the roadside layby, you will head to the northeast across the open farmlands for a short distance, before the trail bends to the northwest and begins to climb up the mountainside. Here, you will gradually gain elevation and experience some beautiful views overlooking the eastern portion of Brecon Beacons NP, before reaching the northernmost point of the route. Continue along the trail as it bends to the south and climbs further uphill to the summit of Pen Allt-Mawr for some more amazing views that extend to the west towards the Brecon Beacons.

    After traversing the summit, continue on to the southeast for some panoramic views of the rugged landscape from Pen Cerrig-Calch, where you will also be able to spot Sugar Loaf Mountain to the southeast. Heading downhill along the trail, you will traverse the hill known as Crug Hywel, before turning to the northeast to traverse the slope on a route that will return you to the trailhead.

    Insider Hints for Pen Cerrig-Calch and Black Mountains Walk

    • If you're looking to explore the area a bit more, consider staying at the Cwmdu Campsite, which is situated in the scenic mountains near Crickhowell. Their local village Cwmdu has an excellent pub and cafe within walking distance and plenty of walks around for you to explore.

    Getting to the Pen Cerrig-Calch and Black Mountains Walk Trailhead

    The trailhead for the Pen Cerrig-Calch and Black Mountains Walk can be found 5.1 km NE of Crickhowell along Llanbedr Road.

    Route Information

    • Backcountry Campground


    • When to do


    • Pets allowed

      Yes - On Leash

    • Family friendly

      Older Children only

    • Route Signage


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    Pen Cerrig-Calch and Black Mountains Walk Elevation Graph

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    Pen Cerrig-Calch and Black Mountains Walk Reviews

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