Mamucium

Mamucium, also known as Mancunium, is a former Roman fort in the Castlefield area of Manchester in North West England. The castrum, which was founded c. AD 79 within the province of Roman Britain, was garrisoned by a cohort of Roman auxiliaries near two major Roman roads running through the area. Several sizeable civilian settlements (or vicus) containing soldiers' families, merchants and industry developed outside the fort. The area is a protected Scheduled Ancient Monument.

The ruins were left undisturbed until Manchester expanded rapidly during the Industrial Revolution in the late 18th century. Most of the fort was levelled to make way for new developments such as the construction of the Rochdale Canal and the Great Northern Railway. The site is now part of the Castlefield Urban Heritage Park that includes renovated warehouses. A section of the fort's wall along with its gatehouse, granaries, and other ancillary buildings from the vicus have been reconstructed and are open to the public.