No earthwork protrudes, no ridge or hollow catches the eye at ground level. The only reason anyone knows it is there at all is because the land, if examined carefully, still holds the ghost of a bank and fosse, the latter being a ditch dug alongside an earthen bank as a combined boundary and defensive feature common to early Irish enclosures.

The site at Kilbaylet was recorded by Liam Price, the Dublin judge and dedicated Wicklow antiquarian, whose reference from 1953 remains the primary source for its existence. It occupies a position overlooking a steep, narrow valley, a placement that recurs frequently with enclosures of this kind, where the elevated ground offered both visibility and some degree of natural protection. Whether it served a domestic, agricultural, or ritual purpose is not recorded. What can be said is that its square plan is notable; most early Irish enclosures tend toward the circular or oval form, making a square example comparatively unusual, though not without parallel elsewhere in the country.