Economy of Devon (chewing gum) and HMNB Devonport (the largest naval base in western Europe) are in Plymouth. Torquay was home to Beverage Brands, the producers of WKD Original Vodka. Britannia Royal Naval College is at Dartmouth. Mining for tin and copper was carried on in Devon from ancient times until the 1930s: see Dartmoor tin-mining. Agriculture has been an important industry in South West England since the 19th century: approximately 80% of land in the South West of England is in agricultural use (19.6% of England's total). In the later 19th and early 20th centuries there were a number of potteries in
University Royal Naval Unit University Royal Naval Unit A University Royal Naval Unit (URNU) is a Royal Navy training establishment connected to a university, or a number of universities concentrated in one area. There are 15 URNUs nationwide in the UK, and each URNU has land-based facilities near the university in question, up to four training officers (members of the Royal Naval Reserve) and, with the exception of Devon, a dedicated training vessel (an "Archer"-class P2000 fast patrol boat). The units and their ships are URNU ships are part of the 1st Patrol Boat Squadron, or "1PBS". 1PBS is commanded by Commander 1PBS, who