The centerpiece of this historic location is an oval earthen mound, rising just over a metre from the surrounding pasture. Measuring roughly 18 metres from north to south and nearly 14 metres across, this grass-covered hillock of earth and stone has watched over the riverbank for centuries, its weathered form blending naturally into the landscape.

What makes this burial ground particularly noteworthy is the simple stone cross marker positioned just north of the mound’s summit. This weathered slab, less than a metre tall and no more than 12 centimetres thick, bears a modest incised cross; its arms stretching just 20 centimetres in length. The simplicity of the carving speaks to an earlier era of Irish Christianity, when such markers served as quiet testaments to faith and remembrance rather than elaborate monuments.

The site’s location seems deliberately chosen, nestled between the main flow of the Owenea and one of its smaller tributaries, creating a naturally defined sacred space. Though unassuming compared to Ireland’s grander archaeological treasures, Killeen Burial Ground represents the kind of vernacular heritage site that dots the Irish countryside; places where local communities once gathered to bury their dead and mark their passing with simple stone crosses that have endured through the centuries.