These milefortlets and intervening stone watchtowers extended from the western end of Hadrian's Wall, along the Cumbrian coast and were linked by a wooden palisade.

The milefortlet is located close to the hamlet of Blitterlees, in the civil parish of Holme Low.

[1] The site is damaged by wind erosion and quarrying, and it is covered by vegetation.

[2] Each milefortlet had two associated towers, similar in construction to the turrets built along Hadrian's Wall.

The excavations uncovered five hearths, and sherds of cooking pots, one of which had been mended with a lead rivet.