The ringfort at Emper sits on a gentle south-south-westerly slope amid undulating grassland, and while it still commands good views across an open stretch of countryside, the monument itself tells a more complicated story than the ground now reveals.

A ringfort, sometimes called a rath, is a roughly circular enclosure defined by one or more earthen banks and ditches, most commonly associated with early medieval settlement in Ireland. The Emper example appears to have been bivallate, meaning it originally carried two lines of enclosure: an inner raised platform of around 25 metres across, set within a larger outer bank and fosse, giving the whole structure a diameter of approximately 55 metres. The 1838 edition of the Ordnance Survey six-inch map recorded it clearly in this fuller form, showing the raised central platform as a distinct feature. By the time the revised twenty-five-inch map was produced in the early twentieth century, that inner platform had already dropped out of the record, with only the outer enclosing element still depicted. A 1976 description confirmed the outer bank and a wide, shallow external fosse, but noted that field fencing along the south-west, west, north, and north-east arc of the perimeter had by then been incorporated into the monument's boundary, as shown on the 1912 six-inch map. Since that survey, the enclosing earthwork along the north-east to south-west arc has been levelled entirely, leaving no visible upstanding remains on that side. It now appears only as a crop mark on aerial photography, the differential growth of crops above buried soil disturbance tracing what the eye can no longer follow at ground level. Nearby, within a few hundred metres to the west-south-west, sit a large ringfort, a possible mound barrow, and the Emper Fair Green, suggesting this corner of Westmeath held a concentration of activity across several periods.