5,000-Year-Old Scottish Crannog Reveals Wooden Platform Foundation

Archaeologists have discovered that a small island in Loch Bhorgastail on Scotland's Isle of Lewis, long thought to be natural stone, is actually a man-made crannog resting on a circular wooden platform 75 feet across. The platform, made of cut timbers and brushwood, dates to roughly 5,000 years ago, predating the full construction of Stonehenge. A layer of stone and brushwood was added in the Middle Bronze Age (around 3,000 years ago), with further additions in the Iron Age (around 2,000 years ago). The discovery was made by a team from the University of Southampton, including maritime archaeologist Stephanie Blankshein and researcher Fraser Sturt, as part of the 'Islands of Stone' project. The team also found a stone causeway and Neolithic pottery shards. To overcome photogrammetry challenges in shallow water, they mounted two waterproof cameras on a rig moved by a diver, capturing overlapping images to create a 3D model. This method was published in the journal Advances in Archaeological Practice. The crannog's construction required 'monumental effort,' suggesting complex communities and significant ritual or high-status use, though exact purposes remain unknown.