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Natural Monuments
Ireland

Sligo

Top 16 Natural Monuments in Sligo

Best natural monuments in Sligo showcase a landscape shaped by glacial activity and rich in ancient history. County Sligo, situated on Ireland's Wild Atlantic Way, features distinctive geological formations and significant archaeological sites. The region offers a variety of natural features, from flat-topped mountains to scenic lakes and waterfalls. These monuments provide opportunities to explore unique flora, historical cairns, and diverse ecosystems.

Best natural monuments in Sligo

  • The most popular natural monument is Queen Maeve's Grave (Knocknarea Cairn), a…

Last updated: April 28, 2026

Queen Maeve's Grave (Knocknarea Cairn)

Highlight • Historical Site

Large burial mound on the Knocknarea near Sligo. The climb is nice and not too long. Allegedly the queen was buried standing here in her armor!

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Carrowmore Megalithic Tombs

Highlight • Historical Site

Many megalithic tombs from prehistoric times can be visited here

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Benbulben

Highlight • Summit

Great tour with a beautiful view from the "horseshoe" on the coast. The paths are little or no maked, so that you have to walk a little bit of map and feeling.

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The Devil's Chimney Waterfall

Highlight • Waterfall

You will find all of the information about this remarkable place here: camesawloved.com/the-devils-chimney

Come in the Autumn and look down from the other side of the valley on the main …

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The waterfall is fed from the bog and may be more or less visible depending on the weather in recent weeks. When I was there, the lower half had seeped.

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Summit of Benbulben

Highlight • Summit

Great walk and suitable for all ages

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Caves of Keash

Highlight • Cave

In this rock face, 17 caves open into the interior of the mountain. Many legends are told about this place, among other things a king is said to have been …

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Mullaghmore Head

Highlight (Segment) • Viewpoint

Maybe you will see some brave surfers in the water here. The high waves crash against the rocks with a lot of force - definitely a surf spot for professionals. …

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Carrowkeel Neolithic Cemetery

Highlight • Historical Site

These impressive stone tombs were built in the Neolithic between 4000 and 2500 BC. The cemetery is extensive and shows imposing passage graves, i.e. stone mounds with an entrance. The …

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Gleniff Horseshoe

Highlight • Gorge

The Gleniff Horseshoe has spectacular views of the Dartry Mountains and Donegal Bay. The valley was formed during the last Ice Age when the entire valley was carpeted in one …

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David Bavin-Hobbs

Tips from the Community

Matto
September 23, 2025, Carrowmore Megalithic Tombs

At the Carrowmore Megalithic Cemetery, archaeologists have discovered the remains of more than 60 tombs, of which more than 30 have been excavated. The oldest tombs are about 700 years older than Newgrange and date from around 3800 BC.

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See also: www.carrowkeel.com

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Wolf Beyenburg
January 2, 2025, Benbulben

A beautiful, very distinctive table mountain that dominates the landscape over a wide area.

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A beautiful, distinctively shaped table mountain that has dominated the landscape since.

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The graves at Carrowmore are numbered - a list is available at the entrance. This is Grave 51 - a former barrow that was opened at the back in 1998 and the interior was uncovered. It is now possible to go into the grave.

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Carrowmore (Irish: An Cheathrú Mhór, 'the great quarter') is a large group of megalithic monuments. They were built in the 4th millennium BC, during the Neolithic (New Stone Age). There are about thirty surviving tombs from about 80. There may have been more monuments originally, but some fell victim to quarrying and field clearance during the 18th, 19th and early 20th centuries. The tombs are numbered - a list is provided at the entrance. https://en.wikipedia.org/wiki/Carrowmore

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Alex
October 5, 2023, Gleniff Horseshoe

The Gleniff Horseshoe has spectacular views of the Dartry Mountains and Donegal Bay. The valley was formed during the last Ice Age when the entire valley was carpeted in one kilometre thick ice. When the ice melted and retreated, it hollowed out this picturesque valley.

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Ralf Georgi
August 3, 2023, Benbulben

The spruces are extremely densely planted. Nothing will come of it. Much nicer are the deciduous tree areas...

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Frequently Asked Questions

Which natural monuments in Sligo are most popular with visitors?

Visitors frequently enjoy the historical significance and panoramic views from Queen Maeve's Grave (Knocknarea Cairn). Another highly rated spot is Benbulben, known for its distinctive shape and beautiful vistas. The Summit of Benbulben also offers great views and is suitable for various fitness levels.

Are there any natural monuments in Sligo that are particularly family-friendly?

Yes, Carrowmore Megalithic Tombs is listed as family-friendly, offering an engaging historical experience. Additionally, Glencar Waterfall, while not in the highlights data, is known from region research to have amenities like a playground and easy walks to viewing platforms, making it suitable for families.

What kind of unique geological features can I expect to see in Sligo?

Sligo's landscape is rich in unique geological formations. Benbulben, often called 'Ireland's Table Mountain,' is a prime example, carved by glaciers during the last Ice Age, featuring steep-sided formations of limestone atop mudstones. You can even find fossils of seashells and corals within its rock layers. The Caves of Keash also offer a fascinating glimpse into the region's geological past.

What historical or archaeological sites are integrated with Sligo's natural monuments?

Sligo is deeply intertwined with ancient history. The most prominent is Queen Maeve's Grave (Knocknarea Cairn), a massive Neolithic burial mound on Knocknarea, believed to be older than Egypt's pyramids. The Carrowmore Megalithic Tombs are another significant historical site, and the Carrowkeel Neolithic Cemetery offers further insights into prehistoric life.

Are there good hiking opportunities near Sligo's natural monuments?

Absolutely. Sligo offers excellent hiking trails. For instance, you can find routes like the 'Knocknarea and Queen Maeve's Grave loop from Strandhill' or the 'Benbulben Loop' for various difficulty levels. You can explore more options in the Hiking in Sligo guide.

What other outdoor activities can I do around Sligo's natural attractions?

Beyond hiking, Sligo provides diverse outdoor activities. You can find running trails such as the 'Benbulben Forest loop' or 'Mullaghmore Head Loop'. For mountain biking enthusiasts, there are routes like the 'Bunnyconnellan Loop'. Discover more details in the Running Trails in Sligo and MTB Trails in Sligo guides.

Where can I find impressive viewpoints of the Sligo landscape?

Many natural monuments offer spectacular views. The summit of Knocknarea, home to Queen Maeve's Grave, provides stunning 360-degree panoramas. The Summit of Benbulben and Benbulben itself are renowned for their scenic outlooks. Additionally, Mullaghmore Head offers dramatic coastal views.

What is the best time of year to visit Sligo's natural monuments?

The best time to visit Sligo's natural monuments generally depends on your preferred activities. Spring and summer (April to September) offer milder weather, longer daylight hours, and vibrant greenery, ideal for hiking and exploring. Waterfalls like Glencar Waterfall are particularly dramatic after heavy rain, which is more common in autumn and winter, though these seasons can also bring strong winds, especially at exposed sites like Benbulbin.

Are there any natural monuments in Sligo associated with Irish folklore or literature?

Yes, Sligo is rich in such connections. Benbulben is deeply intertwined with Irish mythology, said to be a hunting ground of the Fianna warriors and the resting place of Diarmuid and Gráinne. Glencar Waterfall famously inspired William Butler Yeats's poem 'The Stolen Child,' adding a layer of literary magic. Lough Gill also features the iconic Lake Isle of Innisfree, immortalized in Yeats's poetry.

What kind of natural features can I explore around Lough Gill?

Lough Gill is a scenic freshwater lake surrounded by wooded hills. It's a protected site known for its unique ecosystem, including species like lamprey, Atlantic Salmon, and otters. The lake contains numerous islands, most famously the Lake Isle of Innisfree. The surrounding woodlands, such as Hazelwood Forest and Slish Wood, offer nature trails, and the lake itself can be explored by boat, making it a haven for nature lovers and birdwatchers.

Are there any less crowded natural spots or 'hidden gems' in Sligo?

While popular sites draw crowds, exploring areas like the Caves of Keash can offer a more secluded experience, with its fascinating history and natural formations. The Gleniff Horseshoe also provides a stunning, often quieter, scenic drive and walking opportunities through a dramatic glacial valley.

What should I wear when hiking or exploring Sligo's natural sites?

Given Sligo's often changeable weather, it's advisable to wear layers. Waterproof and windproof outer layers are recommended, especially for exposed areas like mountain summits or coastal viewpoints. Sturdy, waterproof hiking boots are essential, as many trails can be stony, wet, or boggy, particularly after rain. Even on an easy tour, damp feet can be an issue in raised bogs.

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Didn’t find what you were looking for?

Find even more amazing natural monuments in Sligo by checking out the top Highlights region by region:

Sligo Municipal Borough District

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Extend your search for the best caves by checking out these guides of the top ones in Sligo:

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