The dominant soil feature is deep, mineralogical clay with properties of ultra-fine limestone particles high in calcium (rated 2/3 & 3/3 by Herody), high in minerals and low to moderate in nitrogen. This highly sought-after soil-type is ideal for terroir driven Pinot Gris, Riesling & Pinot Noir, providing balanced mineral nutrition but requiring enriched levels of organic matter for optimal vine growth and grape berry nutrition for winemaking. These soils are also delicate so poor farming practices create hardpans. Other famous regions with comparable cool climate and this soil type, such as Burgundy have proven that vines, grown organically express the terroir most typically. Deep rooted vines can find their own water and nutrients for much of the season minimizing irrigation demands.