Nineteen of these features were identified during field survey of the bog, each one a deliberate human construction rather than a natural accumulation, quietly waiting beneath the bog surface until modern survey work brought them back to light.

The platforms were built using a combination of brushwood and roundwood, the kind of materials that would have been readily available along the margins of a wetland environment. In several cases, small anchoring pegs were driven in to hold the structure in place, and two examples showed woven brushwood, a technique that required considerably more skill and intention than simply laying timber flat. Wood species identified across nine of the sites included alder, ash, birch, hazel, and willow, all trees commonly found growing at the edges of bogs and slow-moving water. Radiocarbon dates obtained from four of the platforms span a remarkable stretch of time, from the Late Bronze Age, somewhere between 792 and 526 BC, through to the Iron Age, with one platform dated to between 351 and 120 BC. The purposes such structures served is not recorded directly, but wetland platforms of this kind are generally understood to have facilitated fishing, fowling, or access across waterlogged ground, and occasionally to have had ritual significance in a landscape that prehistoric communities appear to have regarded as liminal and charged with meaning.