Highlight • Viewpoint
Hiking
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Pen yr Allt Uchaf is a prominent viewpoint and subsidiary summit nestled within the southern reaches of Snowdonia National Park in Gwynedd, Wales. Standing at an elevation of 641 meters, its name, translating to "top of the highest slope," perfectly describes its position as the highest point on a distinct ridge branching off the south side of the majestic Aran Fawddwy. This natural landmark is a key feature of the Arans range, offering a challenging yet rewarding experience for those…
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December 18, 2020
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October 10, 2025
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Elevation 640 m
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Pen yr Allt Uchaf stands at an elevation of 641 meters (approximately 2,103 feet). It is recognized as a subsidiary summit of Aran Fawddwy within the Snowdonia National Park.
The summit of Pen yr Allt Uchaf is marked by a small cairn. Additionally, you'll find three distinct stones and two fence posts to the southeast of a fence, indicating the highest point.
Yes, while a direct ascent can involve a strenuous slog up steep grass, an easier approach is available. Hikers can follow a good path towards Drysgol and then double back over more manageable terrain to reach Pen yr Allt Uchaf.
The terrain around Pen yr Allt Uchaf is characterized by a steep-sided grassy ridge. While the summit area itself is relatively flat, direct ascents can be very steep and grassy, requiring good footing. The area is rugged, typical of the Snowdonia National Park.
Given its categorization as a 'challenging' highlight and the presence of steep, grassy ascents, Pen yr Allt Uchaf is generally more suited for experienced hikers. While older, adventurous children might manage, it's not typically recommended for very young families or those seeking easy, flat walks.
Yes, dogs are generally welcome on the trails to Pen yr Allt Uchaf. However, it's crucial to keep them under close control, especially due to livestock grazing in the surrounding areas and for the safety of other hikers and wildlife. Be prepared for rugged terrain that might be challenging for some dogs.
Specific parking information for Pen yr Allt Uchaf itself is limited, as it's often accessed as part of a longer route within the Aran Fawddwy area. Hikers typically utilize parking facilities near popular starting points for the Aran range, such as those found near Cwm Cywarch. It's advisable to research parking availability for your chosen trailhead.
Direct public transport to the immediate vicinity of Pen yr Allt Uchaf is very limited. Visitors typically rely on personal vehicles to reach trailheads in the Snowdonia National Park, such as those around Cwm Cywarch. Some bus services might connect larger towns like Bala, but onward travel to the mountain base would likely require a taxi or a long walk.
From the summit of Pen yr Allt Uchaf, hikers are treated to exceptional bird's-eye views of the Cwm Cywarch valley. You can also observe close and dramatic perspectives of the steep south faces of other significant peaks, including Glasgwm, Gwaun y Llwyni, and the impressive Aran Fawddwy itself.
Pen yr Allt Uchaf is located in a remote part of Snowdonia National Park. While there are no direct amenities on the mountain, the nearest towns and villages, such as Bala (Y Bala) or those in the Cwm Cywarch area, offer various cafes, pubs, and accommodation options for visitors.
Given the exposed and challenging nature of Pen yr Allt Uchaf, it's crucial to wear appropriate gear. This includes sturdy hiking boots with good ankle support, layered clothing suitable for varying mountain weather (even in summer), and waterproof and windproof outer layers. Always check the specific weather forecast before your visit, as conditions can change rapidly.