This is a barrow, a burial mound or funerary earthwork of the kind that appears across the Irish landscape in varying states of survival, and the one at Hopestown occupies a peculiar position in the record: mapped once, then apparently lost, then rediscovered only from the air.

The earthwork appears on William Larkin's 1808 Map of County Westmeath, a detailed county survey now held in the National Library of Ireland. By the time the Ordnance Survey produced its six-inch map in 1837, it had vanished from the cartographic record entirely, and it was still absent from the revised twenty-five-inch edition of 1913. A site visit in 1970 confirmed what the maps suggested, finding no surface remains visible. And yet aerial photography from Digital Globe has since revealed a small circular earthwork at the location that corresponds closely to what Larkin recorded. Circular earthworks of this type, when they survive at all, often do so as crop marks or soil variations that only become legible from altitude, the underlying archaeology subtly influencing the vegetation above it even after the physical mound has been levelled. The barrow sits roughly fifty metres south of Hopestown Castle and its bawn, the bawn being the walled or embanked enclosure that typically surrounded an early modern tower house for defensive purposes, and that proximity may say something about how the landscape was organised across different periods of occupation.