Winemaker Notes
High elevation, poor soils and a moderate climate yield full-bodied wines that show rich black cherry flavor and notes of dark chocolate with relatively soft tannins.
Professional Ratings
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James Suckling
This is an extraordinary wine with blackberries, blackcurrants and minerals. Full body and powerful tannins that melt into the fruit. I am in awe here. Drink after 2022.
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Jeb Dunnuck
Starting with the 2016 Cabernet Sauvignon Diamond Mountain District, which comes from a warmer, mountain terroir in the northern part of the valley, this full-bodied, rounded, incredibly textured effort boasts loads of black fruits, savory herbs, eucalyptus, and scorched earth. It has nicely integrated acidity, a deep, multi-dimensional mouthfeel, incredible elegance, and perfect balance, all making for a truly brilliant Mountain Cabernet that will keep for 2-3 decades.
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Robert Parker's Wine Advocate
The 2016 Cabernet Sauvignon Diamond Mountain is 100% Cabernet Sauvignon. Deep garnet-purple colored, it comes sashaying out of the glass with notes of fragrant earth, exotic spices, black pepper and truffles over a core of cassis, black cherry compote and wild blueberries with touches of violets. Full-bodied, rich, sexy and simply delicious, it fills the mouth with bold, layered black fruit supported by incredible tension and wonderfully ripe tannins, finishing long.
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Wine Spectator
This is full of vibrant cassis, blackberry and plum fruit notes, all driven by intense, briar, anise and apple wood accents. Features notable grip, with the vibrant acidity to match, and is built for the long haul. A serious mountain Cabernet. Best from 2024 through 2040.
A noble variety bestowed with both power and concentration, Cabernet Sauvignon enjoys success all over the globe, its best examples showing potential to age beautifully for decades. Cabernet Sauvignon flourishes in Bordeaux's Medoc where it is often blended with Merlot and smaller amounts of some combination of Cabernet Franc, Malbecand Petit Verdot. In the Napa Valley, ‘Cab’ is responsible for some of the world’s most prestigious, age-worthy and sought-after “cult” wines. Somm Secret—DNA profiling in 1997 revealed that Cabernet Sauvignon was born from a spontaneous crossing of Cabernet Franc and Sauvignon Blanc in 17th century southwest France.
Diamond Mountain is the northernmost mountain appellation in the Mayacamas Range, on the northwest side of the valley floor, above the town of Calistoga. Defined mainly by elevation, vineyards are planted at 400 to 2,200 feet.
Diamond Mountain vineyards receive plenty of sunshine at these elevations and are typically above the coastal fog line. But given its western proximity, the area still easily cools down from early morning and late afternoon Pacific Ocean breezes. The AVA (American Viticultural Area) covers 5,000 acres but just over 500 acres are under vine.
Diamond Mountain soils, mainly weathered, red sedimentary rock and decomposed, volcanic ash, are infertile, quick-draining and produce small, thick-skinned grapes, bursting with chewy tannins.
Cabernet Sauvignon, Merlot, Cabernet Franc, Malbec, Petit Verdot and Zinfandel have great success here.
Like other sub-appellations in Napa Valley, the Diamond Mountain area had no shortage of pioneer winemakers. Rudy von Strasser led the effort for Diamond Mountain to acquire AVA status in 1999.