Carrock Fell is a fell in the northern Lake District crowned by a large Iron Age hillfort, now a Scheduled Monument. The oval enclosure measures approximately 245m by 112m and is surrounded by a drystone rampart up to 3m high and 4m wide, with two gated entrances. Built from the distinctive gabbro rock unique to this fell, the fort is believed to have been constructed by Celtic tribes and later destroyed during the Roman conquest of northern England. Some researchers now suggest the enclosure may date to the Neolithic period, making it contemporary with causewayed enclosures elsewhere in Britain.
Carrock Fell

| Type | Fortress/citadel |
|---|---|
| Period | 1500 - 500 BC |
| Country | England |
| Coordinates | 54.6937° N, 3.0231° W |
England