Since 1912 four generations of the Osborn family have tended their nineteenth century vineyards just north of the township of McLaren Vale, bordered by Seaview Road, Chalk Hill Road and Twenty-eight Road. But on their western side, the winery's best Cabernet Sauvignon runs parallel to the one road with four separately named parts, Field Street, Oliver Road at each end and Coppermine Road. Naturally confused, locals just refer to it as "Brewery Hill Road".

Vintage 2005 could be summarized as a vintage that ripened without interruptions. The resulting wines are tight with amazing red fruit fragrance and lovely acidity. Crops yields were above average although slightly under the 2004 vintage.

The 2005 Coppermine Road, one of d'Arenberg's flagship icon reds, is a complex and full bodied wine dominated by red fruits, blueberry, cranberry, cedary cinnamon spice and earth. Vibrant aromas of cassis, black currant, and plum harmonize with the well structured palate. With bottle age, this wine will gain more complex characters of chocolate, truffle, cigar box and earth but maintain its seamless rolling finish.