What survives is the architecture of burial itself, stripped to its essentials: a great flat stone lifted clear of the earth by a handful of supports, creating a sheltered space beneath. This form, known as a boulder burial, is a Bronze Age funerary tradition found almost exclusively in the south-west of Ireland, and Crumpane preserves not one example but two, standing just over a metre apart in rough grazing land.

The two monuments differ slightly in scale and construction. The first is a sub-rectangular boulder measuring roughly 1.5 metres by 1.3 metres and about half a metre thick, resting on three support stones. The second, lying to the south-east, is somewhat larger, its cover stone running to 2 metres by 1.4 metres and 0.7 metres thick, balanced on two supports. The pairing is unusual. Boulder burials typically occur as solitary monuments, and finding two in such close proximity raises questions that the landscape itself cannot answer: whether the burials were contemporary, whether they marked individuals of particular significance, or whether the proximity was simply practical, taking advantage of locally available stone on a slope that already looked out across a valley.