Martin Collins & Paddy Dillon 
Teesdale Way [PDF ebook] 
From Dufton to the North Sea

A guidebook to The Teesdale Way which follows the River Tees for exactly 100 miles from its source near Dufton to its outlet at Middlesbrough on the north-east coast. The Way is divided into eight stages of moderate walking and takes about a fortnight to complete. The route leads through varied country — wild moorland and deep dales, many with dramatic waterfalls, gentle pastures and industrial towns. Not everyone will wish to tackle the Teesdale Way in one go. A final chapter in this book describes ten circular day walks designed to combine parts of the Teesdale Way with footpaths through fine countryside flanking the river on both sides. Reprinted with updates in 2013.