The proximity of these structures to one another is what makes the site so quietly arresting: this is not an isolated monument dropped into an empty landscape, but a single feature within a dense, organised prehistoric world.

Survey and excavation work published by Jones and colleagues has pieced together the extent of that world. The prehistoric landscape on and around Roughan Hill covers an area roughly 2.5 kilometres north to south and 1.5 kilometres east to west, incorporating farms, cairns, and megalithic tombs, all set within a field system that was contemporary with the monuments themselves. The field boundaries survive as sections of prehistoric mound wall, a form of boundary construction in which earth and stone were piled into low linear mounds to divide and define agricultural land. The cairn at Commons, a mound of stones typically raised over a burial or as a territorial marker, sits at the northern edge of this farmed zone, close to but distinct from the domestic cluster below it. What the excavations have made clear is that the people who built these tombs and cairns were also the people who ploughed and fenced the surrounding ground, and that the two activities were not separate in their minds.