The Calanais Stones, also called Calanais I, are a prehistoric stone circle and arrangement of stones on the west coast of the Isle of Lewis in the Outer Hebrides of Scotland. This monument was built during the Neolithic period, around 2750 BC.
The stones form a circle with a tall central large stone and several rows of standing stones that extend outward in different directions, creating a cross-shaped pattern. The monument is located on a low ridge overlooking Loch Roag, near the village of Callanish.
The Calanais Stones are the main site in a larger area of prehistoric monuments on Lewis. Nearby, there are other stone circles and settings, such as Callanish II, Callanish III, Callanish IV, and Callanish VIII. These sites together are often called the Callanish complex by archaeologists.
Archaeological findings show that the site was used for special events or rituals for many centuries during the Neolithic and Bronze Age. Today, the stones are among the most important prehistoric monuments in Britain. They are protected as a scheduled monument, managed by Historic Environment Scotland.
Name and etymology
The monument is known as the Callanish Stones. This is the English name for the local place called Calanais, a settlement on the west coast of the Isle of Lewis in the Outer Hebrides of Scotland.
In Scottish Gaelic, the monument is called Clachan Chalanais or Tursachan Chalanais. The word clachan means "stones," and tursachan means a group or arrangement of standing stones. Both names describe the stone setting at Calanais.
Archaeologists often refer to the monument as Calanais I or Callanish I. This numbering system helps tell the main stone circle apart from other ancient sites nearby, such as Callanish II, Callanish III, Callanish IV, and smaller stone settings.
These names show the site's long history. The Gaelic names come from local traditions tied to the landscape, while the numbered names are from modern archaeological studies of the larger Callanish monument area.
Location
The Calanais Stones (grid reference NB213330) are located on a low hill above the waters of Loch Roag, with the hills of Great Bernera in the background.
Many other ritual sites are found within a few kilometers (miles) of the main site. These include at least three other stone circles, several arcs, lines of stones, and individual standing stones; many of these are visible from the main Calanais Stones. The most notable of these are Callanish II and Callanish III, which are located just over one kilometer (1,000 yards) southeast of the main Calanais Stones. These sites originally had circles made up of at least eight stones each. The presence of other monuments in the area suggests that Calanais was an important center for religious activities during the prehistoric period for at least 1,500 years. (see Callanish III, Callanish IV, Callanish VIII, and Callanish X). Historic Environment Scotland states that the stones were built around 2750 BC, which is earlier than the construction of Stonehenge.
Description
The Calanais Stones include a circle of thirteen stones and a large stone near the center. Five rows of standing stones connect to this circle. Two long rows of stones run almost parallel to each other from the circle toward the north-northeast, forming a kind of avenue. There are also shorter rows of stones to the west-southwest, south, and east-northeast. All the stones are made of the same type of rock, called Lewisian gneiss, which is found in the local area. Inside the stone circle is a chambered tomb located to the east of the central stone.
The central monolith stands 0.8 meters (32 inches) west of the true center of the stone circle. This stone is 4.8 meters (16 feet) tall, 1.5 meters (5 feet) wide, and 0.3 meters (1 foot) thick. The largest sides of the stone are almost perfectly aligned with the north and south. The monolith has the shape of a ship's rudder and likely weighs about seven tonnes.
The stone circle includes thirteen stones and has a diameter of 11.4 meters (37 feet). The circle is not perfectly round but has a flattened east side, measuring 13.4 meters (44 feet) north to south and 12 meters (40 feet) east to west. The stones have an average height of three meters (10 feet). The ring covers an area of 124 square meters (148 square yards), which is smaller compared to similar circles, such as the nearby Callanish II, which is 2.5 times larger.
The avenue connects to the stone circle from the north-northeast. The avenue is 83.2 meters (90 yards) long and has 19 stones remaining: nine on the eastern side and ten on the western side. The tallest stone is 3.5 meters (12 feet) high and is located on the western end of the row. The two rows are not exactly parallel but spread apart: they are 6.7 meters (22 feet) apart at the north end and 6 meters (20 feet) apart at the south end. From the circle, the stones decrease in height toward the middle of the avenue, then increase again. The stones on the eastern side of the avenue are three-quarters the height of those on the western side.
In addition to the avenue's two rows, three other rows of stones connect to the circle. One row comes from the east-northeast, one from the south, and one from the west-southwest. The east-northeast row has five stones and is 23.2 meters (76 feet) long. The southern row has five stones and is 27.2 meters (90 feet) long. The west-southwest row has four stones and is 13 meters (43 feet) long.
None of the stone rows are directly aimed at the center of the stone circle. The east-northeast row is aligned to a point 2 meters (6 feet) south of the center. The southern row points to a spot 1 meter (3 feet) west of the center. The west-southwest row points to a spot 1 meter (3 feet) south of the center.
Between the central stone and the eastern monolith of the stone circle is a chambered tomb that is 6.4 meters (21 feet) long. This tomb was built after the stone circle and is squeezed between the eastern stones and the central monolith.
There is another stone cairn located on the northeast side of the stone circle. This cairn has been reduced to ground level, and its outline is barely visible. It may not have been part of the original site.
Archaeology and dating
From 1980 to 1981, only a few excavations were done, which gave some information about the site’s history. The earliest signs of human activity were a wide ditch (now invisible above ground) that may have been part of a building or enclosure. This could have been used for rituals or daily life. However, around 3000 BC, the area was used for farming, which covered up most of the earlier signs. Later, the site was left to grow wild for a time.
The stone circle was built between 2900 and 2600 BC. It is unclear if the stone lines were made at the same time as the circle or later. After the stones were placed, a small tomb with a chamber was built in the eastern part of the circle. Many pottery pieces found there suggest the tomb was used for centuries. These included local Hebridean pottery, as well as pieces from beaker vessels (from about 2000–1700 BC) and grooved ware.
Between 1500–1000 BC, the site was no longer used and was damaged by Bronze Age farmers. Pottery fragments were found outside the tomb, which might have been from farming or a ritual. Later, the tomb may have been rebuilt, but there is no evidence it was used for rituals again. Excavations in 1999–2000 near the stones uncovered remains of a prehistoric farming system, including buildings, walls, cairns, and cobbled paths, buried under peat. These findings show the area was farmed during the Late Bronze Age and Early Iron Age. By 1000 BC, the stones were covered by thick grass. The site was likely abandoned around 800 BC. In 1857, 1.5 meters (5 feet) of peat was removed, revealing the stones.
Later history
The first written reference to the stones was by John Morisone, a native of Lewis. Around 1680, he wrote that the stones were men "converted into stone by a wizard" and set up in a ring "for devotion." In about 1695, Martin Martin visited the site and was told by local people that "it was a place used for worship during the time of ancient religions, and that the chief druid or priest stood near the large stone in the center, from which he spoke to the people around him." In his 1726 work on the druids, John Toland linked Hyperborea, mentioned by Diodorus Siculus, to Lewis and connected the "spherical temple" described by Diodorus to the Calanais Stones. In 1743, William Stukeley described the stone circle as a druid circle and the avenue as resembling a serpent. In 1819, geologist John MacCulloch published the first accurate description of the stones. In 1846, the Danish historian J. J. A. Worsaae made a sketch and plan of the Calanais Stones.
In 1857, peat was removed to a depth of five feet (1.5 meters) as ordered by the owner of Lewis, James Matheson, revealing a chambered tomb and showing the true height of the stones. In 1885, the Calanais Stones were placed under state care.
Interpretation
Alexander Thom and Gerald Hawkins believed the stones may have been used as an ancient moon observatory. Some researchers have also suggested a connection between the stones, the moon, and the Clisham range in Harris. People who disagree with these ideas say that some stone alignments might occur by chance in any structure. Over time, weathering and movement of the stones have made it difficult to know for sure if any alignments were intentional or not.
Conservation and heritage status
The Callanish Stones are a protected archaeological site managed by Historic Environment Scotland. The monument is officially protected under the Ancient Monuments and Archaeological Areas Act 1979, which highlights its importance as one of Britain’s most significant prehistoric stone arrangements.
Historic Environment Scotland is in charge of caring for the site. This includes keeping the stones and the surrounding area in good condition, checking their health, and controlling how visitors use the site to ensure it remains safe and undamaged.
A nearby visitor center, the Calanais Stones Visitor Centre, offers more information about the site. The center is run by Urras Nan Tursachan (The Standing Stones Trust), a local charity. It provides exhibits, educational materials, and visitor services to help people explore the larger Callanish stone complex.
In folklore
According to one tradition, the Calanais Stones were once giants who refused to change their beliefs to follow Christianity. In the 17th century, the people of Lewis referred to the stones as "fir bhrèige," which means "false men" in the Gaelic language. Another story says that on the morning of midsummer, a being known as the "Shining One" walks along the avenue. This event is announced by the sound of a cuckoo bird.
Other nearby sites
Archaeologists often call the main monument "Calanais I" because many other prehistoric stone sites are found nearby. These monuments are located across the moorland around Loch Roag and on nearby islands.
Several monuments are placed on the ridges and slopes near the main Calanais Stones.
Two connected monuments are found on the nearby island of Great Bernera, which is separated from Lewis by a narrow strait.
Smaller monuments are spread across the moorland to the west and southwest of the main site.
Some stones are farther from the main monuments or may only be hints of ancient structures.