The River Tweed is a major river in the border region between Scotland and England. It flows approximately 97 miles (156 kilometers) from its source in the Moorfoot Hills to the North Sea at Tweedmouth. The river is known for its scenic beauty and diverse wildlife, making it a popular destination for outdoor activities such as fishing and hiking. The Tweed is also significant for its historical and cultural importance. It has been a vital waterway for trade and transportation for centuries. The river's valley is home to several towns, including Peebles and Berwick-upon-Tweed, which showcase the rich heritage of the region.