The River Annan is a river located in southwestern Scotland. It flows for approximately 30 miles, starting in the hills of the Southern Uplands and emptying into the Solway Firth. The river is known for its scenic beauty and is a popular spot for fishing, particularly for salmon and trout. The surrounding area of the River Annan includes the town of Annan, which is situated near its mouth. The river plays an important role in the local ecosystem and supports various wildlife. Additionally, it has historical significance, with several ancient sites located along its banks.