Best mountain peaks in Carlow are primarily concentrated within the scenic Blackstairs Mountains range, offering diverse terrain for outdoor enthusiasts. County Carlow, Ireland's second-smallest county, boasts a selection of notable peaks that provide rewarding experiences. The region is characterized by its moorland ecosystems, dry heath, and glacial drifts, making it a designated Special Area of Conservation (SAC). These natural features contribute to varied Carlow hiking terrain.
Last updated: May 15, 2026
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Popular around Carlow
White Mountain stands at 509 metres (1,670 ft), the highest point on the ridge running south from Blackstairs Mountain. The ridge makes a great walk or run and this southern side of the mountain tends to be much quieter than the popular northern side. Awesome views towards Mt Leinster.
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Knockroe summit is 539 m (1,768 ft) high with amazing views of the surrounding peaks and flat lands to the south. Mant people will climb this on the way up to Mount Leinster to the north or miss it altogether as they head up the higher hill, it's a great top so do make the effort!
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Mountain Sliabh Bán A name in Irish, (Ir. Sliabh Bán [OS 6], 'white mountain'), Carlow County in Leinster province, in Arderin Lists, Slievebawn is the 496th highest place in Ireland.
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Nice trig pointed summit marked by a trig point and a rather large communication mast that is local landmark for miles around. Great hike to the top and lovely views over to Blackstairs mountain and the surrounding countryside.
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I was going the opposite way to Grace and had these great views all the way down. It is a great advertisement to the Irish countryside. Stunning!
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Look backward and enjoy sensational views across the way to Mount Lenister
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Leinster straddles the borders between County Carlow and Wexford and is the highest peak of both areas. The summit offers magnificent views across the counties of southeast Ireland.
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Slievebawn is a 524m summit in the region of County Carlow. With the car park being on high ground already, this is considered a fairly easy climb. From the top, you can enjoy views west over County Wexford and north over County Carlow.
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The most prominent peaks in County Carlow are primarily found within the scenic Blackstairs Mountains. These include Mount Leinster, which is the highest point, Blackstairs Mountain, Knockroe, Mount Slievebawn, and White Mountain. Each offers unique hiking experiences and stunning views.
From the summit of Mount Leinster, you can enjoy panoramic views extending across eight counties (Carlow, Wexford, Waterford, Kilkenny, Tipperary, Laois, Kildare, and Wicklow), and even to the coast of Wales on clear days. Blackstairs Mountain also offers breathtaking 360-degree vistas. Peaks like Knockroe and Mount Slievebawn provide amazing views of the surrounding peaks and flatlands.
Yes, Mount Slievebawn is considered a fairly easy climb, especially since the car park is already on high ground. From its summit, you can enjoy views west over County Wexford and north over County Carlow.
Mount Leinster, as the highest peak at 795 meters, offers a tough ascent that attracts experienced walkers and cyclists. Blackstairs Mountain, the second-highest, also presents a challenging hike, especially with its often muddy and boggy summit area.
The Blackstairs Mountains are particularly lovely to explore during the summer months when wildflowers are abundant. However, the views are impressive year-round, with clear days offering the best visibility across the counties. Be prepared for potentially muddy conditions, especially on Blackstairs Mountain, after rain.
The Blackstairs Mountains, including the peaks in Carlow, are designated as a Special Area of Conservation (SAC). They feature diverse habitats such as blanket bog, dry heath with various heather species and bilberry, and glacial drifts. The deep eastern corrie of Mount Leinster also contains a series of rocky plateaus with small paternoster lakes.
Mount Leinster is linked to St. Columbanus, a 6th-century monk, and is part of the Columban Way pilgrimage route. On the summit of Blackstairs Mountain, you'll find a metal cross serving as a memorial for past aircraft incidents.
Beyond hiking, the region offers various outdoor activities. You can find numerous road cycling routes in Carlow, with Mount Leinster itself being a popular route for the FBD Rás cycling event. There are also many running trails and dog-friendly hikes available throughout the county.
The most popular trailhead for Mount Leinster is at The Nine Stones, a scenic viewpoint that also offers picnic facilities. The hike from here typically takes 4-6 hours for a round trip.
Yes, there are several dog-friendly hikes in Carlow. For example, Kilbrannish Forest offers easy trails suitable for walks with your canine companion. Always ensure your dog is under control and respect local guidelines regarding livestock and wildlife.
Mount Leinster is the highest peak in County Carlow at 795 meters, known for its communication mast and extensive panoramic views across eight counties. Blackstairs Mountain is the second-highest at 732 meters, marking the border between Carlow and Wexford, and is characterized by its tranquil atmosphere and a summit cairn with a metal cross. Both offer challenging hikes and stunning vistas.
Yes, the southern side of the Blackstairs Mountains, particularly around White Mountain, tends to be much quieter than the more popular northern side. This area offers awesome views towards Mount Leinster and a great ridge walk or run.


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