Carrowmore is not a single monument but a whole field of them, and the passage tombs within the complex represent some of the earliest and most densely clustered prehistoric funerary architecture anywhere in Europe. A passage tomb, in its simplest form, is a stone-lined corridor leading to a central burial chamber, all covered beneath a mound of earth or stone; at Carrowmore the examples tend towards a particular local character, with small polygonal chambers set within boulder circles rather than under the large cairns more typical of sites like Newgrange.

The principal scholarly account of the site comes from Seán Ó Nualláin, whose survey of the megalithic tombs of County Sligo, published by the Stationery Office in Dublin in 1989, remains the foundational reference for anyone trying to understand the scale and variety of what survives here. The Carrowmore complex sits in the shadow of Knocknarea to the west, the hill topped by the great unexcavated cairn traditionally associated with the legendary queen Medb, and the visual relationship between the two is almost certainly deliberate, the lower cemetery oriented towards the dominant height of the surrounding landscape. Many of the individual tombs at Carrowmore were already damaged or reduced by the nineteenth century, through agricultural clearance and, in some cases, earlier antiquarian interference, but enough survives to give a genuine impression of the original density of the site.

Carrowmore is managed as a visitor site with interpretive facilities on the ground, and the open pastoral terrain means most of the principal monuments are visible and reasonably accessible on foot. The boulder circles are low and spread wide across the grass, and in certain lights, particularly on overcast mornings when shadows are soft, the stones read clearly against the turf. The relationship between the individual tomb circles and the larger landscape, especially the view back up towards Knocknarea, is something worth pausing over rather than moving through quickly.