A univallate Iron Age hillfort, set above what was once the valley of Mardale. In the first half of the 20th C the valley was damned at Burnbanks, and flooded to quench the thirst of Manchester.
It occupies extensive views down the valley eastwards, towards Shap, and up to the dramatic valley head, thronged by mountains rising steeply.
It was excavated in the 1920s.