Centred on Adelaide - a beautiful, colonial town, regions vary from the industrial Riverland that produces over half the state`s wine – and a third of Australia`s indeed - to the traditional Barossa, Clare and Eden Valleys and, through cooler Adelaide Hills and Coonawarra through to McLaren Vale and Langhorne Creek. The range of terroirs and climates is great and ambition and technology see no restrictions. Except those of water and markets of course. When Australia set out in the early nineties to conquer the world by 2020 it forgot that markets were as important as planting vines. The industry expanded, but concentrated too hard on established and unprofitable markets like Britain. The water seems to be getting ever scarcer and they may not be able to divert that from China as they are so successfully diverting their output there. Ownership of wineries in SA has been crucial and many have been harmed by brewery management. (CW 23/01/12)