Pike Hill Signal Tower was one of a number of signal stations that were built on high ground overlooking the line of the Roman Stanegate road in northern Britannia during the early 2nd century. It later became incorporated into Hadrian's Wall. Its remains, a 2-metre (6 ft 7 in) long fragment of the south-east wall, lie south of a modern road cutting and field wall, and are located in the parish of Waterhead in Cumbria, United Kingdom. The tower is located between Turret 51B and Turret 52A with the fort of Banna located to the east.