Coonawarra is notable for which soil type?

• A. Podzol
• B. Alluvial
• C. Terra Rossa
• D. Laterite

Answer: (C)

Terra Rossa is the defining soil of Coonawarra. This red, iron-rich clay sits on a limestone base and forms a shallow, well-drained layer that restrains vine vigor while concentrating flavors. The result is deeply colored, structured wines with good aging potential, especially Cabernet Sauvignon, for which Coonawarra is famous. The Terra Rossa profile—bright red color, strong drainage, and mineral-tine structure—creates the distinctive regional character that wine lovers associate with this Australian zone.

Podzols are leached forest soils typical of cool, wet climates and don’t align with Coonawarra’s temperate conditions. Alluvial soils come from river deposits and vary widely, lacking the consistent signal of Terra Rossa. Laterite forms in highly weathered tropical conditions, not the climate or geology of this region.