Less discussed, but no less telling, is the field system that survives in its shadow. Ancient field systems, where they persist, are among the quietest and most legible traces of how people once organised the land, their boundaries often predating written record by millennia. At Mooghaun, the presence of such a system alongside the hillfort hints at a settled, working landscape rather than a purely defensive one.

The Mooghaun hillfort itself dates broadly to the Late Bronze Age and early Iron Age, and the surrounding landscape carries archaeological layers from the same broad period. Field systems of this kind typically consist of low stone walls or earthen banks dividing land into plots for cultivation or grazing. Where they survive in proximity to major monuments, they offer a sense of the ordinary economy that sustained whatever communities built and used the more imposing structures nearby. The area also carries a remarkable wider reputation: the Mooghaun hoard, discovered in 1854 during railway construction, remains the largest collection of Bronze Age gold objects ever found in Ireland or Britain, suggesting this was a place of considerable significance across a long span of prehistory.

The source material for this particular field system is limited, and the specific details of its extent, date, and condition remain to be fully documented. What can be said is that Mooghaun repays a careful visit for anyone interested in how landscape archaeology works at a larger scale, where a hillfort, a field system, and a legendary hoard all occupy the same small patch of east Clare.