The Mount Trio vineyard is a family venture established in 1989 by winemaker Gavin Berry and his wife Gill Graham and is situated in the elevated Porongurups sub-region of the Great Southern in Western Australia. Gavin's long-held love for the land and agriculture, developed as a child growing upon a northern NSW wheat farm, was the driving force behind the venture and today Mount Trio represents a very personal expression of the Berry family's life. Named after one of the peaks in the stunning Stirling Ranges, the vineyard is a winemaker’s dream site, one of only a handful that borders the Porongurup National Park. With an absolute northerly aspect, cooling breezes and gravelly loam soils, the gentle slopes also allow for good air movement and drainage. With typically warm dry summers and cool wet winters, these conditions have proven ideal for viticulture and this sub region is especially highly regarded for its suitability for Riesling production.