Camboglanna

thumb|300px|Camboglanna (based on 1964 OS map) thumb|Camboglanna Lidar image

Camboglanna (with the modern name of Castlesteads) was a Roman fort. It was the twelfth fort on Hadrian's Wall counting from the east, between Banna (Birdoswald) almost to the east and Uxelodunum (Stanwix), 9 miles to the west. It was on a high bluff commanding the Cambeck Valley. It guarded an important approach to the Wall and also watched the east bank of the Cambeck against raiders from the Bewcastle area. The site was drastically levelled in 1791 when the gardens of Castlesteads House were laid over it. The name "Camboglanna" is believed to mean "Crook Bank", or "Bent Valley" because it overlooks a bend in the river Irthing; the name is Brythonic, made of cambo- "curved, bent, crooked" and glanna "steep bank, stream/river side, valley with a stream".