Milefortlet 23
Maryport, United Kingdom
Milefortlet 23 (Sea Brows) 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. There is nothing to see on the ground, but Milefortlet 23 has been located and surveyed.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).