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
Royal Naval College of Canada Canadian Navy dockyard at Esquimalt. Classes were also held on the Dominion Government Ship "Naden", commissioned as a tender for training in sail. The College was closed in 1922. In the years between 1922 and 1940, Canadian naval cadets went to the Royal Navy's Royal Naval College in Portsmouth. The Royal Naval College of Canada was established to impart a complete education in Naval Science. Candidates were British subjects between 14 and 16 years of age. The terms and curriculum approximated those of Naval Colleges in Britain save for the initial two year rather than three-year program which was followed