The banks, which run loosely along a north-south axis, surround the burial ground on three sides, and yet they form no coherent enclosure, no obvious boundary, no shape that resolves into a familiar type. Whatever logic once governed their layout has not survived.

What is known about them comes from a single aerial reconnaissance flight made in July 1967, when the cropmarks and shadows that ground-level observation misses can sometimes be read clearly from above. That flight, recorded under the reference CUCAP ATF 56, captured traces of linear banks immediately to the south, west, and north of the graveyard. Even at that point the northern banks had already lost any visible surface presence, leaving only the aerial image as evidence they were ever there. The relationship between the earthworks and the graveyard itself is not established; it is unclear whether the banks predate the burial ground, were built to define it, or belong to some entirely separate phase of activity on the site.