Arkhangel'sk-Severodvinsk is Uralica's largest unitary authority, and it is also home to an extensive system of harbours and ports that is often considered to be one large unit. It is quite large, exceeding the two smallest Uralican counties (Mennoland and Kudymkar Circle) in size, with a diameter of roughly 39 kilometres. The flag of the UA is actually the old flag of historical Arkhangel'sk Oblast, most of which now sits in Northwest Uralica with the remainder comprising Woodlands and Kotlas counties.