A historical construction lying in the depths of Loch Bhorgastail provides information about human existence more than 5,000 years ago. The structure, which appears to be just a small island made of stone nowadays, used to be a wooden structure carefully erected by Neolithic individuals. The age of this ancient structure makes it older than other famous landmarks such as Stonehenge. This structure challenges conventional views of early societies’ engineering skills and settlements.The structure does not appear to be anything extraordinary from the outside. Nevertheless, beneath the surface lies evidence of the meticulous nature of its construction, multiple uses throughout history, and transformation throughout prehistoric ages. According to archaeologists, the structure stands out as one of the best examples of human ability to shape the environment in ancient times.
Scientists discover a lost Scottish island built by humans over 5,000 years ago
This particular site is of the type called a crannog, which can be described as a man-made island in lakes and lochs. Crannogs used to be mostly connected with the Iron Age and the following periods. However, recent discoveries indicate that there may have been some crannogs which had appeared at an earlier period.According to the study carried out by experts from the University of Southampton and the University of Reading, this particular crannog was built between around 3800 and 3300 BCE. This means that its building goes back to the Neolithic period when Stonehenge had not yet been built.As shown by the initial analysis, the crannog initially consisted of a round-shaped wooden platform of a diameter of about 23 metres. Its construction involved several layers of wood, brushwood, and stones, which were used to secure the foundation of the island. Later on, the island was extended and improved. The evidence of constructions that took place during the Bronze Age and then in the Iron Age has been discovered.
What pottery fragments reveal about Neolithic activity at the loch
Archaeological surveys have uncovered large quantities of Neolithic pottery fragments around the site. Some of these vessels contain traces of food residues, hinting at cooking or food preparation activities.This detail changes how the site is interpreted. It may not have been purely symbolic or defensive. Instead, it might have functioned as a gathering place where people met, shared meals, and carried out communal activities. Experts suggest it could have held both practical and social importance.The idea of people building and using a timber island in the middle of a loch feels unusual today. Yet in the Neolithic world, such spaces may have offered a sense of separation from everyday land-based life. Water boundaries often carried meaning in ancient cultures, possibly marking transitions between different social or ritual spaces.Still, much of this remains speculative. The evidence gives clues, but not complete answers.
How scientists uncovered a hidden route to the crannog
Among the most interesting finds are the subterranean stone causeways connecting the island to the landmass. These indicate that initially, there might have been some easier and perhaps even managed access to the island.Throughout the millennia of water level fluctuations, some part of the structure must have been flooded, thus creating a separation of what was formerly one contiguous landscape.The investigation of such landscapes poses its own challenges, one of which stems from the fact that between the dry land and deep waters is an area where traditional land-based surveys cannot be carried out, and underwater methods are not efficient enough either.In order to address this, the scientists combined underwater photography, photogrammetry using drones, and GPS measurements to make up for the shortcomings of individual techniques and created an accurate 3D reconstruction of the area, including both dry land and the submerged parts.