Tarth Water

The Tarth Water is a river in Peebleshire, in the Scottish Borders. It forms part of the River Tweed system. The river with a total length of 7.1 miles, rises on Mendick Hill, a Marilyn, and flows past the villages of Dolphinton and Blyth Bridge before converging at Drochil Castle with the Lyne Water, a tributary of the Tweed.