38 Degrees North
Our Journey, Harvest by Harvest
Discover the essence of 38 Degrees North, a vineyard and winery that meticulously crafts ultra-premium Bordeaux-style blend wines in the heart of Sonoma, California. With a focus on terroir-driven wines and quality over quantity, our vineyard management ensures each bottle reflects the unique growing environment, varietal choices, and winemaking techniques. Join us on a sensory exploration of our wine's style, harvest by harvest

2014 Vintage (0.521 tons harvest)
Drought conditions prevailed, yet despite water stress, the eastern slopes of Sonoma Mountain benefitted from ample sunshine and protective elevation. The result was smaller berries with concentrated flavors, creating Bordeaux-style blends with exceptional depth, bright acidity, and impressive structure. These wines show excellent aging potential with balanced ripeness and well-integrated tannins.
2015 (0.670 tons)
A warm year with early bud break was followed by a protracted, low-yielding harvest. On Sonoma Mountain’s eastern slopes, the volcanic soils and elevation helped mitigate heat, maintaining acid balance. The Bordeaux varieties ripened fully, producing wines with remarkable concentration, rich dark fruit, and supple tannins. The vintage is marked by opulent texture and expressive aromatics while retaining mountain-derived structure.
2016 (0.715 tons)
An even, moderate growing season with excellent conditions throughout provided ideal development for Cabernet and other Bordeaux varieties. The eastern slopes’ unique microclimate, sheltered from fog but affected by diurnal temperature shifts, allowed for slow ripening. The 2016 blends show exceptional balance, precision, and purity with vibrant black fruit, elegant structure, and a characteristic mineral backbone from the mountain’s volcanic soils.
2017 (0.484 tons)
A challenging vintage with extreme heat spikes and later wildfires. Fortunately, most Bordeaux varieties on eastern Sonoma Mountain were harvested before the October fires. The early heat produced ripe, concentrated wines with lush fruit profiles. Those vineyards unaffected by smoke show impressive depth, though some variability exists across the region depending on exact harvest timing and fire proximity.
2018 (0.754 tons)
Widely considered exceptional throughout Sonoma, the 2018 vintage brought moderate temperatures and a long, even growing season. On Sonoma Mountain’s eastern slopes, this allowed for prolonged hang time, resulting in perfect phenolic ripeness without excessive sugar accumulation. The Bordeaux-style blends display remarkable freshness, complexity, balance, and structural integrity with elegant tannins and bright natural acidity.
2019 (0.641 tons)
A relatively cool summer with a few strategic heat spikes created ideal conditions for Bordeaux varieties. Eastern Sonoma Mountain vineyards benefited from the higher elevation’s cooling influence, allowing for even ripening and excellent flavor development. These wines show vibrant fruit expression, beautiful color, refined tannins, and excellent acid balance – combining power with elegance in a classic vintage expression.
2020 (0.464 tons)
A challenging year with drought conditions, heat waves, and widespread wildfires. Many eastern Sonoma Mountain vineyards experienced smoke exposure, affecting the harvest. Those wines produced show concentrated fruit due to low yields, but quality varies significantly by specific vineyard location. The successful wines display intensity with dark fruit character, though production quantities were greatly reduced.
2021 (0.489 tons)
A drought year with cool, even temperatures created smaller yields but excellent quality. The eastern slopes of Sonoma Mountain, with their well-draining volcanic soils, produced wines with remarkable concentration despite water stress. The 2021 Bordeaux blends show elegant structure, vibrant acidity, moderate alcohol levels, and precise fruit expression with excellent aging potential.
2022 (0.289 tons)
A “tale of two harvests” year with heat spikes in September followed by rain that temporarily paused picking. Eastern Sonoma Mountain’s higher elevation helped buffer temperature extremes. The Bordeaux-style blends show deep color, pronounced tannins, and impressive structure with dense fruit concentration. The best examples balance power with freshness in this complex vintage.
2023 (0.436 tons)
One of the longest growing seasons in a decade brought consistent, mild weather throughout the year. Winter rains replenished soils, while cool temperatures allowed for extended hang time on Sonoma Mountain’s eastern slopes. The resulting Bordeaux-style blends show exceptional balance, complexity, and freshness with fully developed flavors, moderate alcohol, and refined tannins in what appears to be an outstanding vintage.
2024 (0.706 tons)
[Note: As of May 2025, the 2024 vintage is still developing and wines have not yet been released. Early assessments suggest a moderate growing season with generally favorable conditions, but comprehensive vintage evaluation will require more time.]

Our
Viticultural & Winemaking Approach
The Viticultural Symphony: A Year in the Life of 38° North Vineyard
At 38° North, our viticultural approach is a meticulous balance of timing, technique, and tradition. Each decision throughout the growing season is deliberately choreographed to maximize our vineyard's (named 'Morningside Mountain') distinctive terroir expression while adapting to the unique challenges of each vintage.
Our annual cycle begins in late winter with precise pruning (bilateral cordon, spur pruned, with VSP), executed this year (2024) on March 18th—strategically timed to delay bud break and minimize frost risk. This fundamental decision shapes the entire growing season, controlling vine vigor and establishing ideal fruit positions. By early April, ground maintenance begins with comprehensive mowing and weeding, creating a balanced ecosystem while reducing competition for precious nutrients.
As spring unfolds, our preventative program commences with organic sulfur applications in late April, reflecting our commitment to sustainable practices. Mid-May brings the crucial suckering process—removing unproductive lateral shoots to concentrate the vine's energy toward quality fruit production while improving airflow through the canopy. This coincides with our second sulfur application, carefully timed to prevent powdery mildew during this vulnerable growth stage.
By early July, perhaps our most critical intervention occurs: strategic leaf removal and shoot positioning. This precision canopy management optimizes sunlight exposure while maintaining just enough shade to prevent sunburn on our developing clusters. The timing of this operation—approximately 90 days before anticipated harvest—demonstrates our European-influenced philosophy, where balanced exposure trumps maximum ripening.
As veraison approached in 2024, we transitioned to Stylet oil applications (July 17th and 31st), providing crucial protection against botrytis and other fungal threats during the ripening phase. Veraison officially began on August 1st, marking the transition from growth to ripening. Immediately following, we applied targeted fertilization at drip irrigation points, providing measured nutrition precisely when the vines translate these resources into flavor compounds.
By August 6th, protective netting was installed—a necessary shield against the wild turkey population that recognizes our fruit quality as keenly as our customers do. This protection preserved our precious crop through the critical final ripening period.
The culmination of our efforts arrived on October 3rd with a pre-dawn harvest beginning at 4:00 AM—the cool temperature preserving delicate aromatics and preventing premature fermentation. Our 2024 yield of 0.706 tons, delivered immediately to our custom crush facility in Napa, represents the harmonious outcome of countless decisions, interventions, and adaptations throughout the growing season.
Post-harvest care included November fertilization, beginning the restoration process for next year's journey and completing the annual cycle that defines our ultra-premium wines.

From Harvest to Bottle: The Artisanal Winemaking Journey of 38° North
The transformation of 38° North's meticulously grown fruit into our distinguished Bordeaux-style wine begins in the pre-dawn darkness, when our precisely harvested field blend arrives at our custom crush facility in Napa. This 36-month odyssey represents the culmination of our viticultural philosophy and the beginning of an equally exacting winemaking process.
What distinguishes our approach is our commitment to true field blend winemaking—our vineyard's harmonious composition of 45% Cabernet Sauvignon, 45% Merlot, 5% Cabernet Franc, and 5% Petit Verdot is harvested together and co-fermented as a unified expression of our terroir. Unlike conventional winemaking where varieties are vinified separately and later blended, our field blend approach allows these varieties to marry from the earliest stages, creating integration and complexity impossible to achieve through post-fermentation blending.
Upon arrival, our small-lot harvest undergoes rigorous optical sorting—an uncompromising selection process ensuring only perfect berries enter fermentation. This technology meticulously removes any imperfect fruit, stems, or foreign material, establishing an immaculate foundation for quality. Following sorting, the fruit undergoes careful destemming while preserving berry integrity. Our winemaking protocol emphasizes gentle handling throughout—minimizing harsh mechanical intervention that could extract bitter components. The pristine mixed berries then enter small-batch fermentation vessels (T-bins) where they undergo a cold soak (3 days at 55F, under dry ice to keep the cap as anaerobic as possible), extracting water-soluble compounds and vibrant color before co-fermentation begins.
Co-fermentation progresses deliberately, with temperatures carefully monitored (bin brought outside to raise temperature to 70-72F, then inoculated with cultured yeast, enabling fermentation to proceed at temperatures up to 88F for 10-12 days) to preserve aromatic complexity while achieving complete sugar conversion. Our European-inspired approach favors longer, cooler fermentations (approximately 3 weeks including extended maceration of 5-10 days) rather than rapid, warm extraction. This patient method develops structural complexity while avoiding harsh tannin extraction (punch downs daily during cold soak; twice daily during early and late fermentation; and 3 times daily during peak ferment), particularly important given our precise 23.5-24 Brix harvest parameters. The synergistic interaction between varieties during fermentation creates a harmony and integration that becomes the signature of our wine—Cabernet Sauvignon and Petit Verdot providing structure and depth, while Merlot contributes plushness and Cabernet Franc adds aromatic lift, all evolving together rather than as separate components.
Once fermentation completes, free-run juice is separated and the remaining fruit receives gentle pressing (membrane press at 0.2-1.2 bar over 60 minutes). The wine then begins its extended maturation journey in premium French oak barrels from central France's most distinguished forests. Our cooperage selection—Bossuet, Vicard, and Sansaud—features 150-200 year old trees with three-year air seasoning, tight grain structure, and medium-plus toast with untoasted heads.
Our signature oak program spans 20 months with a distinctive protocol: the initial 14 months in new French oak (malolactic fermentation occurs in barrel), followed by transfer to neutral barrels for the final 6 months. This thoughtful approach allows for elegant oak integration while preventing over-extraction, balancing the wood's structural contribution with our fruit's inherent character.
Throughout aging, the wine undergoes evaluation with minimal intervention, allowing the terroir expression to evolve naturally. Approximately every three months, carefully executed racking separates the wine from its lees, providing gentle oxygen exposure that softens tannins and develops textural complexity (wine is racked 3 times in new barrel, but only once in older barrel as it is transferred to a stainless steel tank one week prior to bottling). Monthly sulfur checks are made when topping up, to keep sulfur dioxide levels relatively low (30-40ppm free SO2) while high enough for microbial protection.
After 20 months of patient maturation, the wine is then prepared for bottling without aggressive fining (only crossflow filtered), preserving its complete structural and aromatic integrity. Each bottle receives nitrogen at bottling to keep dissolved oxygen at zero, and a distinctive label reflecting that vintage's unique name—a testament to our belief that every harvest tells its own story. The wines then rest in bottle for an additional 15 months (before release in the fall 3 years after harvest) allowing for integration and the beginning of tertiary development that will continue through decades of careful cellaring.
A Vineyard's Second Life: The Journey of 38° North's Owner
When we purchased our Glen Ellen property in 2012, the neglected vineyard dating back to 1999 was an afterthought—a charming but intimidating feature of a home we'd fallen in love with. Having no background in wine and even less in viticulture, I faced a steep learning curve with this unexpected inheritance of 650 forgotten vines clinging to life on Sonoma Mountain's eastern slope.
My initiation into winemaking was humbling. After months of amateur vineyard rehabilitation efforts, 2013's promising harvest disappeared overnight—devoured entirely by wild turkeys who recognized quality fruit before I truly did. That first heartbreaking loss catalyzed a determination to honor what I'd come to recognize as a remarkable terroir.
The transformation from accidental vineyard owner to passionate winegrower has been as deliberate as our winemaking process. In 2022, I committed to formal education through the Wine & Spirit Education Trust, rapidly progressing through Levels 1-3 with distinction. Today, as a WSET Diploma candidate, I bring analytical rigor and growing expertise to decisions once made on instinct alone.
What began as property maintenance has evolved into an all-consuming passion. The journey from novice to student of wine has mirrored the vineyard's revival—both of us flourishing through care, commitment, and unexpected joy in the process. Each vintage now represents both the expression of our unique terroir and my personal evolution in this extraordinary craft—a journey that continues to unfold with every growing season at precisely 38° North.
