Economy of Devon of the railways in the 19th century, Devon's economy has been heavily reliant on tourism. The county's economy has followed the declining trend of British seaside resorts since the mid 20th century, with some recent revival. This revival has been aided by the designation of much of Devon's countryside and coastline as the Dartmoor and Exmoor national parks, and the Jurassic Coast and Cornwall and West Devon Mining Landscape World Heritage Sites. In 2004 the county's tourist revenue was £1.2 billion. The Met Office is in Exeter as is Connaught plc, and Pennon Group, the water company. The Wrigley Company
Rjukan–Notodden Industrial Heritage Site Rjukan–Notodden Industrial Heritage Site Rjukan–Notodden Industrial Heritage Site is a World Heritage Site in Telemark county, Norway, created to protect the industrial landscape around Lake Heddalsvatnet and Vestfjorddalen Walley. The landscape is centered on the plant built by the Norsk Hydro to produce fertilizer from atmospheric nitrogen. The complex also includes hydroelectric power plants, transport systems, including railways, transmission lines and factories, and workers' accommodation and social institutions in the towns of Notodden and Rjukan. The site was placed on the tentative World Heritage list on 19 June 2009 together with the Odda–Tyssedal Industrial Heritage Site. On 5 July 2015