How many sub-regions are there in the Great Southern GI?

The Great Southern GI (Geographical Indication) is notable for its expansive size and diverse terroirs, leading to the classification of its numerous sub-regions. Specifically, the Great Southern consists of five distinct sub-regions: Albany, Denmark, Frankland River, Mount Barker, and Porongurup. Each of these sub-regions possesses unique climatic and geographical characteristics, allowing for the production of a wide range of wine styles, from cool-climate varietals, particularly whites like Riesling, to robust reds.

Understanding the significance of each sub-region is essential not only for identifying wine styles but also for appreciating how geographical features influence viticulture and winemaking practices in this part of Australia. The diversity within the Great Southern serves as a great example of how a single GI can encompass different wine styles due to variations in soil, climate, and elevation across its sub-regions. This awareness is vital for anyone studying or practicing in the field of wine, especially at an advanced level.