It measures roughly 23 metres across and rises about 0.8 metres above the surrounding ground on a low scarp, giving it a faint but unmistakable presence in the landscape. What it once was is not entirely certain, which is part of what makes it interesting.

The platform sits immediately to the north-west of an early nineteenth-century house at Tonywardan, and the working hypothesis is that it formed part of a designed landscape associated with that property. Such features were a common enough ambition among the landowning class of the period, who shaped their grounds with raised walks, viewing mounds, ornamental earthworks, and planted enclosures. This particular feature was not recorded on the 1837 edition of the Ordnance Survey six-inch map, which is itself suggestive; either it had already fallen out of recognisable use by then, or it was never prominent enough to catch a surveyor's attention. Over time, the perimeter from the south-west around through north to north-east has been modified and folded into the field boundary, blurring what would once have been a more defined edge. What remains is incomplete but legible, a geometry imposed on a hillside that the surrounding farmland has been slowly reclaiming ever since.