Rutherglen may have the only major plantings of genuine Durif in the world, due to the Phylloxera vine disease. Rutherglen can also lay claim to the oldest productive examples in all of Australia. From within their quarantined vineyards at Rutherglen, Campbell's have been the protagonists of Durif for generations. Unquestionably, Durif at its finest, Campbells release The Barkly only in years when vintage conditions are exceptional.

The Durif of Rutherglen is unique, nowhere else in Australia are wines of such immense richness and power made from the variety. So rare is Durif that little exists outside Rutherglen. The few vines that have survived elsewhere produce such a different wine from the Rutherglen Durif that it is almost certain they are grown from a different clone. Barkly is what Colin Campbell believes Durif from Rutherglen should be. The vital ingredient is the climate, typically long, warm and dry autumn ripening periods. Choice parcels of the best fruit are vinified on skins in closed fermenters for six days followed by eighteen months maturation in a combination of American and French oak barriques.