The graveyard surrounding Templeavally church is oval in shape, a detail that catches the eye of anyone familiar with early Irish ecclesiastical sites. Ecclesiastical enclosures were the defined boundaries, often circular or oval, that enclosed early medieval monastic or church settlements, separating sacred ground from the surrounding landscape. When a graveyard wall follows that same curved line, it sometimes means the post-medieval boundary was simply rebuilt along a much older one.

The 1837 Ordnance Survey six-inch map shows the church standing in the northern quadrant of the oval graveyard, which is itself a telling arrangement, consistent with how early enclosures were often organised. Beyond the graveyard wall, aerial photography has revealed a curving earthwork in the field to the south-west, first noted by Swan in 1988, and still visible in aerial imagery taken in November 2011. If that earthwork is part of the same enclosure, the original boundary would have been considerably larger than the graveyard alone. There is also the possibility that the public road running to the north of the site curves as it does precisely because it was laid out along, or deflected by, the arc of that same old boundary. It is a familiar pattern in Irish landscapes, where roads quietly trace the ghost lines of vanished structures. None of this is certain. The poorly drained field to the south-west contains low undulating earthworks whose age and origin remain unclear, and the curving earthwork there may equally be a remnant of post-medieval drainage works on wet ground. Loghter Castle lies 1.3 kilometres to the north-west, and a possible ringfort sits only 340 metres to the north, with the Inny River, marking the county boundary with Longford, just 350 metres beyond that. The concentration of features suggests this corner of Westmeath was well settled across several periods, even if its precise history remains difficult to read from the ground.