This region covers the area including the towns of Devonport, Burnie, Strahan and Queenstown as well as Cradle Mountain National Park. Many of Australia’s finest dairy and farming produce come from this region, notable King Island. Cradle Mountain-Lake St Clair National Park, in Tasmania’s World Heritage Wilderness Area, offers a rugged environment with many walking tracks, pure icy streams, ancient pines, glacial lakes and wildlife amid the jagged contours. The area is one of the most glaciated in Australia and includes Tasmania's highest mountain, Mt Ossa (1617 metres) and Lake St Clair, Australia’s deepest natural freshwater lake, the source of the River Derwent.