Wedge tombs, so called because their internal gallery tapers in both height and width from front to back, are the most numerous of Ireland's megalithic tomb types and are particularly concentrated in the west of the country, with Clare holding a notable share of them. They date broadly to the late Neolithic and into the early Bronze Age, a period roughly spanning 2500 to 2000 BC, when communities used these stone-built chambers for collective burial and, in all likelihood, for ritual purposes tied to the land and the dead.

Clare's landscape is well suited to their survival. The county's limestone karst terrain, particularly across the Burren to the north, has preserved dozens of such structures, their massive capstones and orthostats remaining more or less in place across millennia. Leana lies within this broader county tradition, though the specifics of this particular tomb, its dimensions, its orientation, the number of its surviving stones, remain to be fully documented in the public record. What can be said is that wedge tombs in this region frequently face south-west, a consistent orientation shared across the type that may reflect some relationship with the setting sun, and that they are often situated on elevated or open ground where they would once have been visible across considerable distances.