What makes them quietly compelling is not their size, which is modest, but the combination of their material and the small detail carved into one of them. Two of the stones are quartzite and one is sandstone, which already raises questions about where they came from and why they were brought together. On the flat upper surface of the smallest, a simple Latin cross has been incised.

The three stones are laid out in a loose cluster. Stone A, the tallest at 0.8 metres, lies immediately to the west of Stone B. Stone C, the one bearing the cross, is a lower, flatter slab about a metre to the south. Just 5.5 metres to the north sits a boulder burial, a prehistoric monument type in which a large capstone is supported by smaller stones or simply rests directly on the ground, typically understood as a Bronze Age funerary form. The proximity of the two features is unlikely to be coincidental, though the nature of the relationship between them is far from settled. The Latin cross on Stone C suggests at least one moment of Christian activity at or near the site, whether that involved the marking of a pre-existing pagan monument, the creation of a boundary marker, or something else entirely. None of those possibilities can be confirmed from what survives, and that ambiguity is rather the point. The official designation as an anomalous stone group is itself an admission that the site does not fit neatly into any recognised category, which in archaeological terms is often a sign that something genuinely unusual is present.