The well is less than a metre across internally, its walls built without mortar in the technique known as drystone construction, and it sits in open grassland on a gentle rise with views stretching out in every direction. What makes it quietly arresting is not its modest dimensions but its probable purpose and age: this is almost certainly the water supply that kept the nearby tower house functioning, dug and lined at around the same time the tower was built.

The well lies roughly forty metres to the north-west of the Synone tower house, and its position would originally have placed it inside the bawn, the defensive enclosing wall that surrounded a tower house and its immediate yard. Bawns were practical as much as defensive structures, containing stores, animals, and the domestic infrastructure a household depended on; a well within that perimeter would have been essential rather than incidental. The tower house itself still stands, and the remains of the bawn wall have also been recorded, meaning this small sunken circle of drystone work can be read as one component of a once-coherent complex rather than an isolated curiosity in a field.