“The 2015 Impassible Mountain is another magical wine. Based on 100% Cabernet Sauvignon aged 28 months in 75% new French oak, it has a more ripe, sexy style compared to the 2014 and offers awesome crème de cassis, plums, graphite, sweet earth, tobacco, and layers of spice. It's one of those wines that blends incredible richness and depth with a sense of minerality and savoriness, and this is another quintessential Sonoma Cabernet that's going to live for 2-3 decades”
— Jeb Dunnuck 97 pts
2015 Impassable Mountain
From our finest lots individual barrels are selected each year to compose the Impassable Mountain. This vintage, two lots from the upper ridgeline were selected for their power and pure expression of our unique terroir. A study in focus and purity, its concentration and structure will allow it to evolve and unfold for decades to come. This inimitable wine shows dense characters both savory and sweet: black fruit, raspberry, vanilla, clove, cocoa nib, tarragon, cedar, black tea, in endless recursive layers of flavor and texture.
Varietal: 100% Cabernet Sauvignon
Vineyard: 100% Hidden Ridge Vineyard
Production: 342 cases
The Immortal Estate Vineyard lies within an enclosed valley on steep mountainside slopes with mostly eastern, southern exposures. The soils are a complex mixture of uplifted alluvium and decomposed volcanic material typical of the Mayacamas Range, and vary within the vineyard. The majority of the vineyard is on steep terraced slopes. Lean Soils and steep slopes naturally limit vine vigor and give remarkably small berried fruit. Although the vineyard is above the fog and sees warm days, the site is protected from the heart of the inland valley heat and receives cooling from early morning and late afternoon breezes that maintain a moderate growing temperature somewhat cooler than Spring Mountain directly to the east. The extended growing day at moderate temperatures gives the fruit well developed tannins and rich texture while preserving the complex fruit characters and natural acidity lost in warmer locations.
The 2015 vintage was marked by uneven weather in the spring during flowering and berry set that dramatically reduced yields across the North Coast and in our vineyard. Late rains relieved the worst of the drought conditions, helping to fill our pond that supplies our irrigation needs for the year. The light crop ripened in a growing season that rolled between warm and cool spells, absent of the extremes of the Spring, and we insured the evenness of maturity with a stringent green drop. We began harvest more than a week earlier than typical, marking the earliest harvest in our fourteen year history.
Hand harvested and meticulously sorted, the fruit was allowed to cold soak prior to fermentation and further post fermentation maceration on the skins for a total of 31 to 50 days. The wines were pressed to 85% new french oak where they underwent malolactic fermentation. Individual barrels were selected from three lots for inclusion in the Impassable Mountain blend. These wines were racked a total of three times during elevage and bottled unfined and unfiltered in March of 2018.