Newport is a unitary authority city and county located in southeastern Wales, 12 kilometers east of the capital, Cardiff. Newport has its own unitary authority, in the traditional county of Monmouthshire and the preserved county of Gwent. It is next to the Usk River, which flows into the Bristol Channel after Newport. Newport is the third city in Wales after Cardiff and Swansea, and the largest town in Gwent, the unitary authority has a population of 140,200 in its entirety, the seventh largest in Wales. Newport has traditionally been a coal port next to the Severn River estuary. On March 14,2002 Newport received the city status to celebrate the 50th year of reign of Queen Elizabeth II of the United Kingdom.