The River Ribble rises near Ribble Head in North Yorkshire, the Ribble starts at the confluence of two becks, Cam Beck and Gayle Beck. It then flows over 70 miles to the Irish Sea at Preston.
Along this journey many more tributaries add to the size of the Ribble, and by the time it reaches the ocean it is a sizeable River, draining a catchment of over 860 square miles. It has the 7th largest estuary in the UK at over 10 miles wide. The river supports significant numbers of important species of fish, mammals and invertebrates, and the estuary itself is an important protected site for overwintering sea birds.