Beginner Products You May Like Ads by Amazon Share on Facebook Share on Twitter Share on Pinterest Share on LinkedIn Share on Facebook Share on Twitter Share on Pinterest Share on LinkedIn Napa Valley vintners Alex and Graeme MacDonald talk vineyard geology, cover crops and some of the oldest Cabernet vines in Napa Valley. Share on Facebook Share on Twitter Share on Pinterest Share on LinkedIn Products You May Like Ads by AmazonArticles You May Like Napa’s Historic Newton Vineyard Will Close Permanently Antinori Family Purchases Napa’s Arcadia Vineyard, Longtime Grape Source for Stag’s Leap Wine Cellars