Hill o Many Stanes

Two Hundred Stones on a Caithness Hillside

On a gentle south-facing slope above the village of Mid Clyth in Caithness, at the far northeastern tip of Scotland, over two hundred small stones stand in roughly parallel rows that fan outward from north to south, forming one of the most unusual and enigmatic prehistoric monuments in Britain. This is the Hill o' Many Stanes -- or, in the older Scots, the Hill of Many Stones -- a monument that has puzzled visitors and archaeologists since at least the 18th century.

The stones are small. Most stand no more than 30 centimetres tall, and many are barely visible above the rough grass and heather. They are not the great monoliths of Callanish or Stenness, not the carefully dressed pillars of Stonehenge. They are rough, unworked slabs of local Caithness flagstone -- the grey, flat-bedded sedimentary rock that underlies most of the county -- pushed upright into the thin soil of the hillside in an arrangement that is clearly deliberate but whose purpose has never been satisfactorily explained.

The monument is in the care of Historic Environment Scotland, and a short path leads from a small car park to the site. There is no visitor centre, no admission charge. You walk up the path, pass through a gate, and there they are: row upon row of small grey stones, spreading across the hillside like the seats of an amphitheatre, facing south toward the sea.

The Arrangement: Rows in a Fan

The defining feature of the Hill o' Many Stanes is the arrangement of its stones into roughly parallel rows that fan outward from a narrow point in the north to a broader spread in the south. The effect is variously described as fan-shaped, horseshoe-shaped, or amphitheatre-like. The rows are not perfectly straight or perfectly parallel, but the overall pattern is unmistakable.

The rows run roughly east to west, with the fan opening to the south. Within each row, the stones are spaced at intervals of about 1 to 2 metres. The rows themselves are separated by similar intervals. The overall effect, when viewed from the northern (uphill) end, is of a radiating pattern of lines, like the ribs of a fan or the spokes of a wheel with the hub removed.

Surveys suggest that the original monument may have contained as many as 600 stones, of which approximately 200 survive. Many stones have been lost to ploughing, stone clearance, and natural burial beneath the accumulating turf. The surviving stones are those that were too deeply set to be easily removed or too small to be worth the effort.

The Caithness Context: Fan-Shaped Stone Settings

The Hill o' Many Stanes is not unique. It belongs to a class of monuments found almost exclusively in Caithness and Sutherland -- the northernmost counties of mainland Scotland. At least eight similar fan-shaped stone settings have been identified in the region, though most are smaller and less well preserved than the Hill o' Many Stanes.

These fan-shaped settings are a distinctly regional phenomenon. Nothing closely comparable has been found outside Caithness and Sutherland, though stone rows of other types exist across Britain and Brittany. The concentration of fan-shaped settings in this one small area of northern Scotland suggests a local tradition, developed and maintained by communities in a specific region over a period of centuries.

Dating and Interpretation

The Hill o' Many Stanes has not been subject to major excavation, and direct dating evidence is lacking. By analogy with other stone settings in northern Scotland and with the broader tradition of stone rows in Britain, the monument is generally attributed to the Bronze Age, probably between 2000 and 1000 BCE.

The site's purpose has been the subject of sustained speculation. The main interpretive proposals include:

Astronomical Observatory

The most detailed interpretation was advanced by Alexander Thom, the Scottish engineer and archaeoastronomer who surveyed the site in the 1960s and 1970s. Thom proposed that the rows were designed as an astronomical instrument -- specifically, a device for observing and recording the rising and setting positions of the moon over its 18.6-year nodal cycle.

In Thom's interpretation, the fan-shaped arrangement of rows functioned as a grid or graph. An observer standing at different positions within the grid could sight along the rows to different points on the southern horizon, marking the moon's position at different stages of its cycle. The fan shape, Thom argued, was a deliberate geometric construction designed to provide a sufficient number of sighting lines to track the moon's subtle movements.

This interpretation is ingenious but controversial. Thom's methods and assumptions have been questioned by subsequent researchers, and the precision he attributed to the stone settings may exceed what the builders could realistically have achieved with small, rough-hewn flagstones. The rows are not straight enough, and the stones not precisely enough placed, to function as the high-precision astronomical instrument Thom envisaged.

Ceremonial or Ritual Function

A more general interpretation sees the stone rows as a ceremonial site -- a place of gathering, ritual, or commemoration whose specific function is lost. The fan-shaped arrangement may have defined seating or standing positions for participants in ceremonies, like the rows of an amphitheatre. The south-facing orientation would have placed any central activity against the backdrop of the sea and the southern sky.

Funerary Association

Some researchers have noted the proximity of cairns and burial monuments in the surrounding landscape and have proposed a funerary connection. The stone rows may have been associated with burial practices, marking a space for ceremonies related to the dead. However, no burials have been found within the stone setting itself.

Calendrical Marker

A simpler astronomical interpretation proposes that the rows served as a calendrical device -- a way of marking the passage of the seasons by tracking the sun's changing position on the southern horizon. Unlike Thom's lunar hypothesis, this interpretation requires less precision and is more consistent with the rough character of the stone settings.

No consensus has been reached. The Hill o' Many Stanes remains one of the more genuinely mysterious monuments in British prehistory -- a site whose form is clear but whose function is elusive.

Caithness Flagstone: The Material

The stones of the Hill o' Many Stanes are Caithness flagstone, a fine-grained sedimentary rock that is the defining geological feature of the county. Caithness flagstone is a lacustrine deposit -- it was laid down in ancient freshwater lakes during the Middle Devonian period, approximately 385 million years ago. It splits naturally into thin, flat slabs, a property that has made it valued as a building and paving material from prehistory to the present.

For the builders of the Hill o' Many Stanes, flagstone was the ideal material. Its natural tendency to split into flat slabs provided ready-made small standing stones that could be pushed upright into the soil without elaborate shaping or quarrying. The stones at the site are essentially natural slabs, selected for appropriate size and set into shallow sockets in the earth. The labour involved was in the planning and the placing, not in the quarrying or shaping.

The Landscape

Caithness is a distinctive landscape -- flat, treeless, wind-scoured, and vast. The county is essentially a great tilted slab of flagstone, sloping gently from the hills of the interior toward the sea cliffs of the north and east coasts. The land is open and exposed, with wide views under an enormous sky. In summer, the light is extraordinary -- at this latitude (58.3 degrees N), midsummer nights barely darken, and the sun sets into a long, lingering dusk that lasts for hours.

The Hill o' Many Stanes occupies a south-facing slope that exploits this landscape to full effect. The view from the monument extends southward across the coastal plain to the sea. The southern horizon -- the critical horizon for tracking the sun's and moon's movements -- is low and clear. Whatever the monument's purpose, its builders chose a location with an unobstructed view of the sky where the sun and moon rise, arc, and set.

Visiting the Hill o' Many Stanes

The site is located approximately 7 kilometres south of Lybster, on the A99 coast road between Wick and Helmsdale. A brown tourist sign marks the turning, and a short single-track road leads to a small car park.

The site is small enough to walk around in fifteen or twenty minutes, but it rewards a longer visit. Take time to walk along the rows, to crouch down to the level of the stones, to look south along the sighting lines toward the sea. The stones are small and subtle, and their pattern only becomes clear when you move among them, adjusting your position and your perspective.

Visit on a clear evening in late spring or summer, when the sun is low in the west and the light rakes across the rows, casting long shadows from each small stone. In that light, the fan-shaped pattern emerges with startling clarity, and the hillside comes alive with the geometry of a Bronze Age mind that saw something in this slope, this view, this horizon, that we are still trying to understand.