Natural monuments around Marlborough, Wiltshire, are characterized by ancient geological formations and significant prehistoric sites. This region features a landscape shaped by millennia of natural processes and human activity, offering a unique blend of historical and natural exploration. Visitors can discover a diverse array of monuments, from artificial mounds to ancient burial chambers, set within rolling hills and valleys. The area provides opportunities to engage with both the natural environment and rich cultural heritage.
Last updated: May 19, 2026
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Devil's Den stone monument is a Neolithic dolmen (burial chamber) located in Wiltshire, near Marlborough, not Sturminster Newton. The structure features a massive 17-ton capstone resting on two upright sarsen stones. Local folklore claims that if water is poured into the hollows on the capstone, the Devil himself will come during the night to drink it. It was largely reconstructed in 1921 after the chamber collapsed.
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Sidbury Hill, or Sidbury Camp, is the site of an Iron Age bivallate hillfort on the eastern edge of Salisbury Plain in Wiltshire, England. The site is sub-triangular in shape, approximately 17 acres in area, and is constructed on the site of a Neolithic settlement. The hill offers excellent defensive slopes on all sides, which have been supplemented by the double ditch and rampart earthworks. The settlement and hillfort were partially excavated in the 19th century and the 1950s; there were finds of pottery and other artefacts. A Neolithic settlement site was discovered during the excavation in the 1950s, being of a section of the south-east rampart of the hillfort. A number of flint flakes and tools were recovered. The site is a scheduled national monument. Trees planted in the 1960s were removed from 2002 and the area was allowed to revert to the natural chalk downland. Access to the site is difficult as it is on, or near, Ministry of Defence land, and there are many tank tracks and occasional artillery firing in the area. There are also numerous ditches, barrows, trackways, field systems, and tumuli in the area. Due to erosion issues climbing on the barrow is now forbidden. Such a shame, but understandable.
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A well preserved bell barrow, the mound of which measures 22m in diameter and stands up to 2.8m high. The mound is surrounded by a berm up to 5m in diameter and a ditch 0.7m deep and up to 6.2m wide. One of these two bell barrows produced a sherd of Bronze Age pottery and a fragment of a polished greenstone axe, both found by Owen Meyrick. A bell barrow, the mound of which measures 24m in diameter and stands 2.7m high. The berm and ditch which surround this barrow have been levelled by cultivation on three sides but survive as buried features on the fourth. From measurements on the western side it can be seen that the berm is c.3m wide and that the ditch is c.5m wide.
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Who wouldn't want to walk into a neolithic burial chamber? anybody? no? didn't think so!!! It was amazing!!! The monument includes six prominent Bronze Age round barrows which form part of a larger round barrow cemetery north-east of West Kennett Farm and west of the Ridgeway track on Overton Hill. This is the site of a round barrow which, despite being ploughed level, will contain archaeological information; the old ground surface beneath the mound and the surrounding quarry ditch, from which material was quarried during construction of the monument, will survive as buried features. The area of the mound has a diameter of 33m; the surrounding ditch is c.2m wide. A bowl barrow, the mound of which measures 41.5m in diameter and stands up to 1.2m high. The mound is surrounded by a ditch which has become infilled over the years but which survives as a buried feature c.3m wide. This barrow has been partially excavated on two occasions, in 1857 by Thurnham and again in 1882 by W & H Cunnington. The primary cremation burial was not located but two secondary cremations were recovered. One was located north- west of the centre of the mound and was accompanied by a flint scraper and a serrated flint flake; the other was situated east of the centre and contained pottery sherds of two vessels, a beaker and an urn, as well as a piece of antler and several bone pins. A bowl barrow, the mound of which measures 42m in diameter and stands up to 0.7m high. The barrow has been partially excavated on two occasions, in 1857 by Thurnham and in 1882 by Ponting. These revealed that the barrow mound contained a crouched skeleton in a grave partly lined and roofed with sarsens. This was covered by a sarsen cairn, itself ringed by a double circle of sarsen stones c.1m outside the edge of the cairn. There was no evidence of a ditch around this barrow. Other finds included a later crouched skeleton covered with sarsen stones, the skeleton of a child, three large urns full of burnt bones and the perforated head of a bone pin. A well preserved bell barrow, the mound of which measures 26m in diameter and stands up to 3m high. The mound is surrounded by a gently sloping berm or platform c.3m wide and a ditch 0.5m deep and up to 6.4m wide.
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Adam’s Grave on Walker's Hill in Alton, the most dramatically located Neolithic long barrow in Wiltshire and the site of battles in 592 and 715. The area surrounding Walker's Hill is pitted and speckled with barrows and ditches of many sizes and shapes.
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In a field on Fyfield Down, 1 mile east of Marlborough, Wiltshire, stands the prehistoric burial chamber known as The Devil’s Den or Clatford Bottom Stone, a Neolithic monument from 5,000 years ago that is also known as a Dolmen (stone table). Get up here on a clear day, nice and early, and you'll witness the most amazing sunrise.
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The Marlborough area is rich in ancient geological formations and significant prehistoric sites. You'll find a unique blend of historical and natural exploration, including impressive Neolithic sites like the Avebury Stone Circle, the massive artificial mound of Silbury Hill, and ancient burial chambers such as West Kennet Long Barrow.
Yes, several sites are suitable for families. The Avebury Stone Circle is a great option, as it's free to visit and allows you to get up close to the stones. The surrounding footpaths are also enjoyable for a family stroll. Many of the trails around these monuments are moderate and can be enjoyed by various ages.
Marlborough's natural monuments offer a deep dive into prehistory. You can explore sites like the Avebury Stone Circle, built 4,000 to 5,000 years ago, or the Silbury Hill, Europe's largest artificial mound from around 2400 BC. The West Kennet Long Barrow, a Neolithic burial chamber from 3650 BC, even allows you to step inside and experience its ancient atmosphere.
Yes, you can enter the West Kennet Long Barrow. This Neolithic burial chamber, one of Britain's best-preserved, allows visitors to explore several of its internal chambers. It can be dark inside, so bringing a torch is recommended to fully appreciate the surrounding rocks.
For expansive views, Walkers Hill is an excellent choice. From its summit, you can admire the Vale of Pewsey and the surrounding downland, with exceptional vistas on a clear day. The hill also features historical elements like Adam's Grave and ancient earthworks.
Absolutely. The region offers a variety of hiking trails. For easy walks, you can find routes like the Wessex Ridgeway loop from Marlborough or the Polly's Tea Room loop. More challenging options include the Marlborough & Avebury running loop which takes you through the North Wessex Downs. You can find more details on these and other routes in the easy hikes around Marlborough guide or the running trails around Marlborough guide.
Beyond hiking, Marlborough offers excellent road cycling opportunities. You can explore routes like the Wiltshire Cycleway Loop or shorter loops around Pewsey White Horse. For more information on cycling, check out the Road Cycling Routes around Marlborough guide.
Visitors frequently praise the historical significance and the ability to interact with these ancient sites. Many appreciate that places like Avebury Stone Circle are free to enter and allow close access to the stones. The combination of stunning views, rich history, and well-maintained trails makes for a rewarding experience.
Yes, the Devil's Den Dolmen is a notable site. Located on Fyfield Hill, it's a neolithic passage grave with a massive 17-ton capstone. The site, which includes two standing stones and two fallen stones, was reconstructed in 1921 and is open every day.
When visiting Avebury Stone Circle, remember that it's free to enter and you can touch the stones, unlike some other sites. The fields can be muddy, especially after rain, so wearing good footwear is advisable. There are many footpaths passing through the area, connecting it to other nearby prehistoric remnants.
Many of the significant historical natural monuments in the Marlborough area are managed by heritage organizations. For example, Silbury Hill is managed by English Heritage, and West Kennet Long Barrow is managed by the National Trust on behalf of English Heritage. You can often find detailed visitor information on their respective websites.


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