Greenock Creek produces Shiraz, Grenache and Cabernet with grapes from two prime growing regions in the heart of the Barossa Valley, Seppeltsfield and Marananga. Michael Waugh makes 100% Shiraz, Grenache and Cabernet; each wine is created with fruit from a particular vineyard block. Yields are low—ridiculously so in the case of the Roennfeldt Road Shiraz and Cabernet blocks, where half a ton an acre is typical from the 60-year-old vines.