Travel blog of my hike to Tillingbourne, situated in the Surrey Hills, is one of the most industrialised river valleys in 17th century England. Stretching from its source at Leith Hill to where the river converges with the Wey at Shalford, the Tillingbourne’s 11 miles of constant flow led to centuries of exploitation. With approximately 50 water wheels at its height, powering 24 known mills and supporting 12 different industries at various periods in time, including weaving, tanning, iron-working, paper-milling and gunpowder production, the valley’s idyllic landscape holds a significant legacy of cultural heritage.