Winemakers Notes - This appellation sits at the highest section between the Vaca and Mayacamas mountain ranges. The Mayacamas are famous for great Cabernet wine, due in part to ancient pyroclastic soils that contain volcanic glass. Josh Cellars North Coast Vineyards contain obsidian gravel that allows the soils to drain well, which is extremely important for growing Cabernet grapes. The high elevation sunlight combined with the rich volcanic red soils and obsidian fragments produce quality grapes that are extremely unique to the Red Hills. The vineyard itself sits on an East facing slope with varying altitude from 1200 to 2000 feet. The average daytime summer temperature is 84 degrees with an average nighttime temperature of 51 degrees.