Single standing stones are scattered across Ireland in their thousands, the purposes of most long debated and rarely settled. Paired standing stones are less common, and their arrangement tends to suggest something more deliberate: an alignment, perhaps, oriented to a solar or lunar event, or a boundary marker of some kind, or a monument framing a view or an approach. Two stones placed in relation to each other imply a relationship, a geometry, an intention that a solitary stone does not require.

Paired standing stones in the west of Ireland generally date to the Bronze Age, roughly 2500 to 500 BC, though some may be earlier or later, and without excavation it is rarely possible to assign a precise date to any individual example. The townland name Derryhillagh derives from the Irish, most likely containing the element doire, meaning an oak wood, which places the stones in a landscape that was once more heavily wooded than the open bog and rough grazing that characterises much of Mayo today. Beyond their existence as a classified monument in Derryhillagh, specific details about the stones, including their dimensions, their precise orientation, and their current condition, are not presently available in the public record.