Vintners obsess about the impact the earth has on the product. Vineyards are divided into well documented blocks with attributes recalled when tasting the wine's ultimate terroir. wikipedia 
Jory volcanic topsoils can be found on the three Northern blocks: Chopping, Stumbling & Building; driving more red fruit notes. While Willakenzie sedimentary topsoil is found on the remaining three blocks, leaning to more earthy & black fruit notes. map search 
We're thinking vineyard sector maps should overlay our leaflet maps. Maybe this is easy? github
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