Wine Advocate-Parker : The 2015 Chianti Classico Gran Selezione San Lorenzo represents a blend of some of the estate's best Sangiovese from vines that are 20 years old and more. You do feel that extra density, intensity and complexity within the very fiber of this beautiful wine. The effect is deep and layered. Castello di Ama is characterized by limestone clay soils mixed with both galestro and alberese marl stones. There is about 60 centimeters of topsoil and compacted clay below that.