The Yarrow River is a river located in the southern part of Scotland. It flows through the Scottish Borders region, winding its way through picturesque landscapes and valleys. The river is approximately 30 miles long and is known for its scenic beauty, attracting visitors for outdoor activities such as hiking and fishing. The Yarrow River is part of the larger River Tweed catchment area. It has several tributaries, including the Ettrick Water and the Yarrow Water. The river plays a significant role in the local ecosystem and is home to various wildlife species, making it an important natural resource for the region.