Milefortlet 11 is located in Cumbria

Milefortlet 11 was a Milefortlet of the Roman Cumbrian Coast defences. 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. They were contemporary with defensive structures on Hadrian's Wall. Milefortlet 11 has never been accurately located on the ground although other Roman remains have been found in the area.

• http://en.wikipedia.org/wiki/Milefortlet 11