Paris Bisector is a term used to describe the SEINE River, which bisects the city of Paris. The SEINE is a major river in France that flows through the capital city of Paris and into the English Channel. It is approximately 776 km (482 mi) long and is one of the most important rivers in Europe. The SEINE has been an important part of Paris' history since ancient times, and it continues to be a major source of transportation, commerce, and recreation for the city.