Block House- Napa Valley Yountville
Block House Vineyards, the oldest vineyards in Napa Valley, were planted by Mountain Man, George C. Yount, in 1836, just after receiving the Rancho Caymus land grant from General Vallejo. The Block House name is derived from Yount’s first Kentucky-style defensive fortification west of the Mississippi. Most interesting is that this Yountville AVA has the most unique geomorphic combination of soils in the Napa Valley, comprised of both sedimentary and alluvial soils interspersed with sandy and gravelly loam, plus some clay. These soils and the mild temperatures allow the grapes to develop their unusual characteristics and expression of the “terroir”. The nine acres of Block 28, abutting the Napa River, devoted to Sauvignon Blanc are set in a silt loam soil yielding the greatest expression of this exquisite varietal.