The site is roughly oval, measuring approximately 42 metres north to south and 52 metres east to west, and the ground inside it rises naturally to form a raised central platform, standing about 1.76 metres above the level of the inner bank. That combination, a man-made boundary embracing a natural hill rather than commanding it, gives the place an unusual character among earthwork enclosures.

The engineering is more varied than a casual glance would suggest. On the north side, the boundary consists of a bank, a berm (a flat shelf of ground between two earthwork features), and a scarp, the whole arrangement relatively modest in its internal height but presenting a more imposing face outward. The southern side is considerably more elaborate, with an inner bank, a fosse (a ditch), and an outer bank beyond that, suggesting either a greater concern for defence or emphasis at this approach. A causewayed entrance, essentially a raised crossing over the ditch, opens at the south at a width of 2.4 metres. Stone protruding from sections of the inner bank may indicate that it was once faced or revetted in stone, a technique used to stabilise earthen banks and lend them permanence. Geological character asserts itself inside too: an area of natural rock outcrop occupies the eastern sector, and a large conglomerate boulder sits in a hollow close to the inner bank on the same side. Along the western edge, quarrying has disturbed the site at some point, complicating any reading of the original ground there.