Measuring roughly 57 metres north to south and 35 metres east to west, it is defined by a raised bank and an external fosse, the ditch that runs around the outside of the bank and was intended to make any approach across it awkward. A gap on the eastern side appears to be original, meaning the entrance people used more than a thousand years ago is still, in outline, the entrance you would use today.

This is a rath, the most common type of early medieval settlement monument in Ireland, typically dating from roughly the sixth to the tenth centuries. A rath was essentially a defended farmstead, the bank and fosse enclosing a family's house, outbuildings, and livestock rather than marking any military fortification in the modern sense. What distinguishes this particular example is the probable presence of a souterrain within the interior. A souterrain is an underground stone-built passage or chamber, usually associated with storage, perhaps for dairy produce, or as a place of refuge during raids. They are found beneath many raths, though they are not universal, and their presence here suggests a household of some means and organisation. The site is described as well-preserved, which is notable given how many comparable earthworks across the country have been levelled by agriculture over the centuries.