Carrickmines Castle

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Carrickmines Castle" – news · newspapers · books · scholar · JSTOR (October 2018) (Learn how and when to remove this message)

Carrickmines Castle is an archaeological site in Carrickmines, County Dublin, in eastern Ireland. The castle was built in the Middle Ages to protect the English-ruled Pale around Dublin. The mostly subsurface ruins lay in the path of the M50 motorway, completed in 2005. Sections of the medieval walls and some sections of the castle's defensive structures were preserved within or under M50 roundabouts.