Turret 65A is thought to be located about 250 metres east of Beech Grove.[1] Turret 65B corresponds to the site of Stanwix Roman Fort, and is likely to have been replaced by the fort when it was constructed.[4] Excavations in 1975 at the calculated position of Turret 65B found only wall core.[5] It is thus unknown whether Turret 65B was replaced by the fort before or after the replacement of the Turf Wall by the Stone Wall.[4]