Vitrified forts are stone enclosures whose walls have been subjected to vitrification through heat. [1] It was long thought that these structures were unique to Scotland, but they have since been identified in several other parts of western and northern Europe.
Vitrified forts are generally situated on hills offering strong defensive positions. Their form seems to have been determined by the contour of the flat summits which they enclose. The walls vary in size, a few being upwards of 12 feet (3.7 m) high, and are so broad that they present the appearance of embankments. Weak parts of the defence are strengthened by double or triple walls, and occasionally vast lines of ramparts, composed of large blocks of unhewn and unvitrified stones, envelop the vitrified centre at some distance from it. [2] The walls themselves are termed vitrified ramparts. [3]
No lime or cement has been found in any of these structures, all of them presenting the peculiarity of being more or less consolidated by the fusion of the rocks of which they are built. This fusion, which has been caused by the application of intense heat, is not equally complete in the various forts, or even in the walls of the same fort. In some cases the stones are only partially melted and calcined; in others their adjoining edges are fused so that they are firmly cemented together; in many instances pieces of rock are enveloped in a glassy enamel-like coating which binds them into a uniform whole; and at times, though rarely, the entire length of the wall presents one solid mass of vitreous substance. [2]
It is not clear why or how the walls were subjected to vitrification. Some antiquarians have argued that it was done to strengthen the wall, but the heating actually weakens the structure. Battle damage is also unlikely to be the cause, as the walls are thought to have been subjected to carefully maintained fires to ensure they were hot enough for vitrification to take place. [4] [5]
The expert consensus explains vitrified forts as the product of deliberate destruction either following the capture of the site by an enemy force or by the occupants at the end of its active life as an act of ritual closure. [6] The process has no chronological significance and is found during both Iron Age and early medieval forts in Scotland. [6]
Since John Williams, one of the earliest of British geologists, and author of The Natural History of the Mineral Kingdom, first described these singular ruins in 1777, over 70 examples have been discovered in Scotland. [2] The most remarkable are:
For a long time it was supposed that these forts were peculiar to Scotland; but they are found also in the Isle of Man (Cronk Sumark); County Londonderry and County Cavan, Ireland; in Upper Lusatia, Bohemia, Silesia, Saxony, and Thuringia; in the provinces on the Rhine, especially in the neighbourhood of the Nahe; in the Ucker Lake; in Brandenburg, where the walls are formed of burnt and smelted bricks; in Hungary; in several places in France, such as Châteauvieux (near Pionnat), Péran, La Courbe, Sainte-Suzanne, Puy de Gaudy, and Thauron; also rarely in the north of England. Castle Hill, Almondbury in Huddersfield, West Yorkshire. [2] Broborg is a vitrified hill-fort in Uppland, Sweden. [7]
The 16 September 1980 episode of Arthur C. Clarke's Mysterious World features a segment in which the archaeologist Ian Ralston examines the mystery of the vitrified fort Tap o' Noth and tries to recreate how it might be accomplished by piling stones and setting a massive bonfire, repeating the work of V. Gordon Childe and Wallace Thorneycroft in the 1930s. [8] The experiment produced a few partially vitrified stones, but it was asserted that no answers were gleaned as to how large-scale forts could have been crafted with the approach tried in the programme. [9]
A dun is an ancient or medieval fort. In Great Britain and Ireland it is mainly a kind of hillfort and also a kind of Atlantic roundhouse.
Dunning is a small village in Perth and Kinross in Scotland with a population of about 1,000. The village centres around the 12th–13th century former parish church of St. Serf, where the Dupplin Cross is displayed. It is in Strathearn, north of the Ochil Hills. It is just south of the A9, between Auchterarder and Perth.
Kirkmaiden is a parish in the Rhins of Galloway, the most southerly in Scotland; the present Church of Scotland parish has the same name as and is approximately coterminous with the original pre-Reformation parish.
The Tap o' Noth is a hill and the name of a Pictish hill fort on its summit, 8 miles south of Huntly in Aberdeenshire, Scotland at grid reference NJ485293. It is the second highest fort in Scotland and its main feature is its well-preserved vitrified wall which encloses an area of approximately 100 m by 30 m, 0.3 hectares. Archaeological finds from the site include a stone axe head dated to between c. 2000 BC– c.800 BC, and a decorated bronze rein-ring dated to the 1st–3rd century AD. The site has been designated a scheduled ancient monument.
Dunnideer Castle, now ruined, was a tower house located near Insch, Aberdeenshire, Scotland. It was built c. 1260 partially from the remains of an existing vitrified hill fort in the same location. It consisted of a single rectangular tower of 15 m by 12.5 m with walls 1.9 m thick. Evidence suggests that a first-floor hall existed and that it had several floors.
Dùn Dubh is a hillfort, located on the Inner Hebridean island of Coll. The fort is one of three associated with a local tradition which states that they were once the fortresses of Norsemen before being defeated by a Maclean chieftain. The early 20th century antiquary Erskine Beveridge considered it as one of the four most interesting fortifications, on Coll. The site is located at grid reference NM18365942.
Dùn Beic is a dun located on the Inner Hebridean island of Coll. It is located at grid reference NM15495644 and is thought to date to between 1000 BCE to 1000 CE. The etymology of the dun's name is uncertain; one possibility is that it could be made up of a personal name. The dun appears in local legend as being one of several fortresses held by Norsemen, who were defeated in battle against the ancestor of the Macleans of Coll. There have been several archaeological finds at Dùn Beic; these include pieces of flint, burnt bone, and fragments of incised pottery.
Hillforts in Britain refers to the various hillforts within the island of Great Britain. Although the earliest such constructs fitting this description come from the Neolithic British Isles, with a few also dating to later Bronze Age Britain, British hillforts were primarily constructed during the British Iron Age. Some of these were apparently abandoned in the southern areas that were a part of Roman Britain, although at the same time, those areas of northern Britain that remained free from Roman occupation saw an increase in their construction. Some hillforts were reused in the Early Middle Ages, and in some rarer cases, into the Later Medieval period as well. By the early modern period, these had essentially all been abandoned, with many being excavated by archaeologists in the nineteenth century onward.
The architecture of Scotland in the Roman era includes all building within the modern borders of Scotland, from the arrival of the Romans in northern Britain in the first century BCE, until their departure in the fifth century CE. Ptolemy indicated that there were 19 "towns" in Caledonia, north of the Roman province of Britannia, but no clear evidence of urban settlements has been found and these were probably hillforts. There is evidence of over 1,000 such forts, most south of the Clyde-Forth line, but the majority seem to have been abandoned in the Roman period. There is also evidence of distinctive stone wheelhouses and small underground souterrains.
Craig Phadrig is a forested hill on the western edge of Inverness, Scotland. A hill fort on the summit is generally supposed to have been the base of the Pictish king Bridei mac Maelchon. The hill rises to 172 metres (564 ft) above sea level and overlooks the Beauly Firth to the north and the mouth of the River Ness to the north-east. The hill is currently owned and managed by Forestry and Land Scotland.
Hillforts in Scotland are earthworks, sometimes with wooden or stone enclosures, built on higher ground, which usually include a significant settlement, built within the modern boundaries of Scotland. They were first studied in the eighteenth century and the first serious field research was undertaken in the nineteenth century. In the twentieth century there were large numbers of archaeological investigations of specific sites, with an emphasis on establishing a chronology of the forts. Forts have been classified by type and their military and ritual functions have been debated.
The Doune of Relugas is a hill fort located 9.25 kilometres (5.75 mi) south south west of Forres in Moray, Scotland. It is situated on a rocky knoll rising to approximately 400 feet (120 m) above ordnance datum and forming the south east part of the promontory at the confluence of the River Findhorn and the River Divie. The site commands an uninterrupted view of the valley of the Findhorn as far as Culbin Sands, 9 miles to the north on the shore of the Moray Firth.
Dun Evan or the Doune of Cawdor is a hill fort located 2.5 kilometres (1.6 mi) south west of Cawdor in the Highland area of Scotland. It is situated on a rocky hill that rises to 678 feet (207 m) above ordnance datum between the valleys of the River Nairn and its tributary the Allt Dearg. The site has a wide view in all directions, extending to the mouth of the River Nairn at the town of Nairn, 7 miles to the north east on the shore of the Moray Firth. Dun Evan is scheduled by Historic Environment Scotland as a site of national importance.
The Knock of Alves is a small wooded hill that lies 3 miles (4.8 km) to the west of Elgin in Moray, Scotland, rising to 335 feet (102 m) above ordnance datum. Its summit is marked by York Tower, a 3-storey octagonal folly erected in 1827 to commemorate Prince Frederick, the Duke of York; and the Forteath Mausoleum, built in 1850 as the burial place of 7 members of the Forteath family of the nearby house of Newton.
Dunagoil is a vitrified fort or dun on the Isle of Bute – an Iron Age hill fort whose ramparts have been melted by intense heat. It stands on a volcanic headland and gives its name to the bay that it overlooks. Like other places, such as Donegal, its name is from the Gaelic dún na gall – fort of the foreigners.
Dunearn is a hill fort located 15 kilometres (9.3 mi) south south east of Nairn in Highland, Scotland. It is situated on a steep-sided hill called Doune rising to approximately 266 metres (873 ft) above ordnance datum just south of Dulsie Bridge in the parish of Ardclach.
Dunnicaer, or Dun-na-caer, is a precipitous sea stack just off the coast of Aberdeenshire, Scotland, between Dunnottar Castle and Stonehaven. Despite the unusual difficulty of access, in 1832 Pictish symbol stones were found on the summit and 21st-century archaeology has discovered evidence of a Pictish hill fort which may have incorporated the stones in its structure. The stones may have been incised in the third or fourth centuries AD but this goes against the general archaeological view that the simplest and earliest symbol stones date from the fifth or even seventh century AD.
Kemp Law Dun is a vitrified fort dating from the Iron Age situated near the town of Dundonald in South Ayrshire, Scotland. The remains of the Iron Age fort or dun lie on the old Auchans Estate in the Dundonald Woods near the site of the old Hallyards Farm and the quarry of that name. The footpath route known as the Smugglers' Trail through the Clavin Hills from Troon to Dundonald runs passed the ruins of the dun. Kemps Law is in the order of two thousand years old.
Maggie Wall, was believed to have been burned as a witch. She is best known for the memorial monument in Dunning, Perthshire inscribed with "Maggie Wall burnt here 1657 as a witch". A skull on display in the Saracen Head pub in Gallowgate, Glasgow, is claimed to be Wall's.