It sits at the western end of a low ridge in gently rolling upland pasture, level underfoot where the builders chose to place it, yet flanked to the south-west and north by ground that drops away steeply. The effect is of something quietly commanding, a raised circular platform that reads clearly in the landscape without announcing itself loudly.

A ringfort, or rath, is an enclosed farmstead of the early medieval period, typically dating from roughly the fifth to the twelfth century. Most consist of a circular area defined by one or more earthen banks with an accompanying ditch, and this one at Tormore follows that pattern with some precision. The enclosed area measures around 26 metres in diameter. On the north-north-west to south-east arc, the defence takes the form of an earthen bank roughly 4.7 metres wide, accompanied at its outer foot by a fosse, a defensive ditch, some 7.1 metres wide and just under two-thirds of a metre deep. On the opposite arc, from south-east around to north-north-west, the builders used the natural slope more directly, cutting a scarp into the hillside that rises about 1.4 metres on its outer face. Where the ground falls away most sharply to the south-west and north, a narrow terrace about 4 metres wide runs along the base of the scarp, a subtle engineering detail that manages drainage and reinforces the boundary. The original entrance survives on the south-east side, a ramp two metres wide crossing the scarped edge, the same route that whoever lived here would have used to come and go.