Rooted in low-vigor soils and influenced by abundant winter rainfall and warm harvest nights, Spring Mountain yields wines of striking varietal complexity and vibrant fruit character. Our 2023 vintage offers a bold yet refined expression, with aromatic layers of wildflowers, cassis, tobacco leaf, and crushed stone. Seamlessly knit flavors of ripe fruit and fine-grained mountain tannins create a well-structured and beautifully composed palate.
Varietal: Cabernet Sauvignon
AVA: Spring Mountain District
Vineyard: Keenan “Big K”
Clone: 15 & 7
Elevation: 1750-1850ft
Rootstock: 110R
Soil: Forward silt loam & rhyolitic tuff
At the highest elevation of the historic Keenan “Big K” Estate Vineyard, we cultivate Clone 7 and Clone 15 Cabernet Sauvignon from a single, select block. Nestled in the Spring Mountain appellation, this region is known for its intimate vineyards tucked into terraced hillsides and sloping meadows, with wineries often hidden among dense forests and winding mountain roads. Spring Mountain has consistently produced wines of exceptional quality—celebrated around the world for their intense flavors and the refined, balanced tannins that have come to define the region’s distinctive style.
Exclusively Clone 15 Cabernet Sauvignon from Keenan’s Big K vineyard, our 2021 Spring Mountain wine offers a classic Spring Mountain bouquet of blackberries, dark currants, brambly underbrush, tobacco, earth and leather. It builds beautifully on the palate and is full-bodied, layered, and complex with intense, balanced tannins. Clone 15 is known for its ageability due to its solid structure and high levels of anthocyanins – cellar it with confidence as this mountain Cabernet will gracefully age for decades to come.
Our 2022 Spring Mountain Cabernet is spectacular – Clone 15 lends the dark black fruit characteristics and a layered, complex structure, while Clone 7 lends more deep red fruits, softer floral aromatics, and silky tannins. The wine is deep purple/ruby-hued and offers a bouquet of brambly blackberries, black cherry, raspberries, wildflowers, dried herbs, walnuts, and Connecticut tobacco. It has a savory, dense palate that is full-bodied, layered, and complex with intense yet smooth tannins.
As one of the rockiest vineyard sites in Napa Valley, Andrew Geoffrey’s soil composition of volcanic ash and rhyolitic tuff produces wines of remarkable power, bright acidity, and refined tannin structure. Our 2023 vintage greets you with a lifted and inviting bouquet where California lilacs and graphite intertwine with ripe blackberry and cassis notes, showcasing the floral-mineral nuance typical of Diamond Mountain terroir. On the palate, this Cabernet exhibits powerful depth—yet thanks to the volcanic terroir, it remains elegant and tension-driven. A rich interplay of concentrated dark fruit is balanced by bright acidity and finely polished tannins, guiding a seamless, plush finish. The refined tannin structure and balanced acidity promise graceful maturation.
Varietal: Cabernet Sauvignon
AVA: Diamond Mountain District
Vineyard: Andrew Geoffrey
Clone: 15
Elevation: 1998ft
Rootstock: 110R
Soil: Volcanic ash & rhyolitic tuff
Nestled atop Diamond Mountain at ~1998 feet, Andrew Geoffrey Vineyard rests on a steep, rock-strewn slope within an appellation prized for its volcanic soils—rich in ash, tufa, and rhyolite—earning the nickname “jewels of Napa.” These soils yield wines of intense concentration, elevated acidity, and long aging potential thanks to low fertility and strong drainage. With only 13 planted acres, Andrew Geoffrey’s fruit often features in acclaimed Diamond Mountain bottlings from top estates.
Nestled on the rugged eastern ridges of Napa Valley, Melanson Vineyard is among a select few exceptional sites perched on the enchanting slopes of Pritchard Hill—undeniably one of the Valley’s finest terroirs. Known for its steep inclines and well-drained volcanic soils, Pritchard Hill consistently produces wines of remarkable depth and elegance. Our 2023 Marquess beautifully embodies this unique terroir, offering concentrated mountain fruit with layered aromas and flavors of dark berries, violets, and savory cedar. Bold and expressive yet elegantly balanced, it’s supported by fine, dusty tannins that provide structure and a refined finish.
Varietal: Cabernet Sauvignon
AVA: Napa Valley (Pritchard Hill)
Vineyard: Melanson
Clone: 7
Elevation: 1200-1350ft
Rootstock: 110R
Soil: Sobrante loam, clay loam & volcanic rock
Pritchard Hill is distinguished for producing robust, densely structured, and complex Cabernet Sauvignons. Since the 1980s, Greg Melanson has been cultivating Cabernet Sauvignon on Pritchard Hill. Flint Knoll sources its fruit exclusively from a single southeast-facing vineyard block situated on a steep, rocky slope, where the vines experience significant stress due to limited water and nutrient availability. This challenging terroir provides an optimal environment for the production of world-class Cabernet. The vines are planted at elevations ranging from 1,100 to 1,350 feet above sea level, in Sobrante loam and clay loam laden with volcanic rock.
Our 2021 Melanson Vineyard Marquess Cabernet Sauvignon exudes a beautifully complex bouquet of crème de cassis, ripe blue fruits, cacao powder, tobacco and graphite. Hitting the palate it’s powerful, full-bodied, and concentrated with wonderfully integrated acidity, a chalky minerality, polished tannins, flawless balance, and a great finish.
Our 2022 Marquess exhibits a deep garnet-purple hue, and offers a richly layered bouquet featuring aromas of black cherry, dark currants, mocha, and sweet tobacco leaves. On the palate, the wine is powerful, vibrant, and full-bodied, supported by creamy tannins and culminating in a flawlessly structured finish. In every aspect, it embodies the quintessential character of a Pritchard Hill Cabernet.
Situated at high elevation above the valley floor, Howell Mountain is defined by its thin, rocky, and nutrient-poor volcanic soils. These challenging conditions naturally stress the vines, leading to smaller berries, resulting in enhanced concentration and phenolic complexity. Howell Mountain consistently produces wines with deep color saturation, firm tannic structure, and exceptional aging potential. Our 2023 vintage is a true expression of this rugged terroir—intensely concentrated with layered notes of wild mountain berries, subtle spice, and a mineral-laced, earthy core. It achieves a refined balance between phenolic richness and structural precision, offering both power and finesse.
Varietal: Cabernet Sauvignon
AVA: Howell Mountain
Vineyard: Ciminelli
Clone: See
Elevation: 2200ft
Rootstock: 110R
Soil: Red Aiken loam & volcanic rock
Perched at the summit of Howell Mountain, Ciminelli Vineyard is the home of Impensata. The south and east-facing slopes and porous, volcanic soils are ideal vineyard real estate. Planted under the watchful eye of David Abreu, 15 pristine acres of Cabernet Sauvignon, Cabernet Franc, Merlot, Petit Verdot, and Sauvignon Blanc are now flourishing amongst 25 acres of thoughtfully manicured forest.
McLintock is distinctly crafted from some of the oldest Clone 7 Cabernet Sauvignon vines on Spring Mountain. These dry-farmed vineyards produce a small, concentrated harvest, resulting in a ripe, brilliant, and classic old-vine Cabernet. Our 2023 McLintock Cabernet Sauvignon is complex and structured, showcasing a signature bouquet of violets, dark cherries, plums, and bouquet garni. It masterfully balances power and elegance, delivering a luxuriously textured, rich, full-bodied, and opulent wine, framed by smooth, well-integrated tannins.
Varietal: Cabernet Sauvignon
AVA: Spring Mountain District
Vineyard: Keenan “Big K”
Clone: 7
Elevation: 1750-1850ft
Rootstock: 110R
Soil: Forward silt loam and rhyolitic tuff
Our Spring Mountain Clone 7 Cabernet Sauvignon from the historic Keenan “Big K” Estate Vineyard sits at the highest elevation on the property. The Spring Mountain appellation is defined by small vineyards, sharply inclined terraces and sloping meadows, and wineries hidden from view among dark forests and steep winding roads. Over the years, despite its limited space and remoteness, the appellation has produced an abundance of wines acclaimed worldwide for the unmistakable intense flavor and delicate, balanced tannins that are now the signature of Spring Mountain wines. Flint Knoll is honored to work with the Keenan family to source fruit and make wine from this legendary location.
Our 2021 McLintock Cabernet Sauvignon is aromatic and complex with notes of red and black plums, red raspberries, lots of wildflower and violet nuances, and graphite characteristics. It is voluptuously textured, rich, full-bodied and opulent with long, silky smooth tannins.
This bright, aromatic, complex wine expresses a beautiful bouquet of red plums, currants, and blood orange. Crushed lilac flowers, savory white pepper, and spice run through this impeccably polished mountain Cabernet. It is voluptuously textured, rich, full-bodied, and opulent with smooth & well-integrated tannins.
Meticulously blended by Flint Knoll winemaker Philippe Melka, Verdigris brings together our prestigious vineyards on Diamond Mountain, Howell Mountain, Pritchard Hill, and Spring Mountain to create the most elevated expression of Napa Valley hillside Cabernet Sauvignon. Focusing on opulence, finesse, and texture, Verdigris transcends terroir, celebrates time, and embraces its journey.
Varietal: Cabernet Sauvignon
Vineyards: Andrew Geoffrey – Diamond Mountain, Ciminelli – Howell Mountain, Melanson – Pritchard Hill, & Keenan – Spring Mountain
Region: Napa Valley
Vintages: 2021, 2023
Our Royal Appointment Cabernet Sauvignon weaves together the rich, concentrated elegance and power of some of the best valley-floor vineyard sites from Calistoga & Stags Leap. This wine is blended with meticulous care by Philippe Melka, resulting in a Cabernet with a complex array of aromas and flavors that delivers a plush, mouth-filling structure with soft, elegant tannins. It offers a bouquet of dusty raspberries & blackberries, plums, dark currants, wildflowers, cacao, and spice that follow through on the palate. A bit softer than our single-vineyard wines, this wine drinks beautifully in its youth and offers greater nuance and complexity with cellaring.
Varietal: Cabernet Sauvignon
AVA: Stags Leap & Calistoga
Region: Napa Valley
Clone: Martini Clone & 169
Instrumental in establishing the Stags Leap District AVA, we source from the coveted old vines of Steltzner Vineyard. A 30 acre site planted to 27 acres of which there is a coveted 5-block section planted to Cabernet Sauvignon dating back to 1976. Farming is done here by well-regarded vineyard manager Jim Barbour and his expert team.
Made in a Right Bank Bordeaux style, Philippe Melka blends together both varietals and vineyards to create a symphonic compilation of aroma and flavor. Our Spring Mountain Merlot gives this wine its rich, powerful flavor, while our Spring Mountain Cabernet Sauvignon provides structure and a layered complexity. Our Oak Knoll Merlot lends the velvety texture and profound elegance inspired by the wines of Pomerol and Saint-Émilion. This wine is deep purple-hued, with a rich nose of dark blue fruits, black currants, cassis, crushed violets, leafy herbs, and warm baking spice. It is a full-bodied Merlot with a stacked, concentrated mid-palate, lush mouthfeel, and a ripping, powerful finish.
Varietal: Merlot
AVA: Spring Mountain & Oak Knoll
Vineyards: Keenan Mailbox & Shifflett Ranch
Region: Napa Valley
Our Spring Mountain Merlot comes from Keenan’s Mailbox Vineyard. Planted to 11 acres of Merlot in rocky soils, this mountainside vineyard produces some of the finest Merlot in Napa Valley. Sited above the dense layer of fog that creeps up the Napa Valley most evenings, the vineyard warms earlier in the morning and temperatures remain warm throughout the night. The combination of these warm temperatures , steep hillside vine rows, and gravelly soils promotes stress on the vines, leading to increased intensity of flavors and aromas in the finished wine.
Shifflett Ranch is nestled against the Mayacamas Mountains just south of Yountville. Regarded as the southernmost true alluvial fan of the Mayacamas Range, the volcanic soils and rocky hillside aspects are ideally suited for Bordeaux varietal grape growing.
Our take on an exquisite Bordeaux blanc-style Sauvignon Blanc from the Rutherford Bench in Napa Valley. The unique gravelly loam and volcanic-based soils give this wine a distinct schist-like texture and pronounced minerality. Barrel-fermented and aged for 17 months; it is creamy, complex, and captivating. It has beautiful aromas of honeysuckle, zesty citrus, pineapple, vanilla, and subtle herbal undertones. This carries to a medium-bodied white wine with an elegant, layered mouthfeel, vibrant acidity, and remarkable depth.
Varietal: 97% Sauvignon Blanc, 3% Sémillon
AVA: Rutherford
Region: Napa Valley
Élevage: 17 months in 100% French oak barrels, 40% new
The 2023 growing season was very long, cool, and even featuring healthy yields and no heat spikes, and the wines show this in their freshness, purity, and elegance. The winter was one of the coldest on record, and the Spring started cool and wet, with heavy rains saturating the soil. Bud break didn’t occur until mid/late April, about two
weeks behind average. Cool and even temperatures contributed to a terrific and heavy fruit set. Verasion began at the end of July and did not finish until the third week of August, about three weeks behind average. October and November brought warmer
temperatures and harvest went smoothly under idyllic conditions until mid-November. Our 2023 wines show remarkable purity and finesse along with depth, concentration, and perfectly polished tannins.
