Hembury is a Neolithic causewayed enclosure and Iron Age hill fort near Honiton in Devon. Its history stretches from the late fifth and early fourth millennia BC to the Roman invasion. The fort is situated on a south facing promontory at the end of a 240m high ridge in the Blackdown Hills. It lies to the north of and overlooking the River Otter valley and this location was probably chosen to give good views of the surrounding countryside as well as for defensive reasons.