The Swiss River is a major river system in Switzerland, consisting of five rivers: the INN, Rhone, Rhine, AAR, and AARE. The INN is a three-letter river that flows through Austria and Germany before entering Switzerland. The Rhone is a five-letter river that flows from the Swiss Alps to Lake Geneva. The Rhine is another five-letter river that flows from the Swiss Alps to the North Sea. The AAR is a three-letter river that flows through Switzerland and Germany. The AARE is a four-letter river that flows through Switzerland and Germany before joining the Rhine. The Linth is a five-letter river that flows through Switzerland and empties into Lake Zurich. Together, these five rivers form the Swiss River system.