Named after a prominent nearby landmark, Castle Rock Estate is nestled on the eastern slopes of the Porongurup mountains. Angelo and Wendy Diletti first planted vineyards in 1983, releasing the first vintage riesling in 1986.

The vineyard is situated 40km north east of Albany and 30km south east of Mount Barker, on a cool and elevated northerly aspect. This results in well ripened cool climate varieties producing intensely flavoured wines.