Placerville Wine Tasting - Rhone Style Wines at Holly's Hill Vineyards, El Dorado County winery in t, Holly's Hill is completely focused on producing Rhone varietal wines. In fact, the estate vineyards are composed entirely of Rhone varieties including Viognier, Roussanne, Grenache, Mourvedre, Syrah, and Counoise. The winery produces both varietal wines, a dry Rosé, and red and white blends.