California Wine Tour: Napa, Sonoma, Central Coast & AVAs in 3D

1,300 kilometers (808 miles) of Pacific coastline, fog gaps that define every major AVA, and a grape-growing diversity matched by no other state.

The California Tour is a guided 3D flythrough in 83 frames: the Pacific mechanism first, then Napa Valley district by district from Carneros and Coombsville to Howell Mountain and Calistoga, Sonoma from the coast to Alexander and Knights valleys, Mendocino and Anderson Valley, Lake County, Lodi and the Sierra Foothills, and the Central Coast through the Santa Cruz Mountains, Monterey and the Santa Lucia Highlands, Paso Robles, Edna Valley and Santa Barbara’s Sta. Rita Hills, Ballard Canyon and Santa Maria Valley. Along the way 115 producers, 37 named vineyards and 123 AVAs and places are marked as clickable pins, each opening a profile in the panel. The Tour is part of SommGeo membership, which starts with a free 15-day trial.

• Frames: 83, from an introduction over the state to a thank-you frame, with Napa, Sonoma, Mendocino, Lake County, Lodi, the Sierra Foothills, Santa Cruz Mountains, Monterey, Paso Robles, Edna Valley, Santa Barbara and the South Coast as named stops
• Pins on the tour: 115 producers, 37 vineyards from To Kalon and Eisele to Hirsch, Pisoni and Bien Nacido, 123 AVAs and places, and five cities, every one clickable
• Tools: Frame navigator with a frame list, clickable pins that load the info panel, compass and camera tilt, measurement tools for distance, height, slope and area, full screen
• Inside the pins: AVA pins give climate, soils and the grapes that define the district; vineyard pins give the site, its owners and who buys its fruit; producer pins give the house and its style
• The Pacific mechanism: Fog gaps such as the Petaluma Gap, the Russian River corridor and the Templeton Gap pull cold marine air inland, and the Tour reads each one on the terrain
• Napa in detail: District by district: Carneros, Coombsville, Oak Knoll, Mount Veeder, Yountville, Stags Leap, Atlas Peak, Pritchard Hill, Oakville, Rutherford, St. Helena, Spring Mountain, Howell Mountain, Calistoga and Diamond Mountain

Almost everything about California wine comes back to the Pacific Ocean. The California Current pulls frigid water south from British Columbia, keeping the offshore temperature below 18°C (64°F) even in summer. As hot air rises in the Central Valley, it creates a vacuum that draws cold marine air and fog inland through every gap in the coastal ranges: the Petaluma Gap, the Russian River corridor, the Templeton Gap in Paso Robles, the transverse valleys of Santa Barbara. Where the fog reaches, you get cool-climate Pinot Noir and Chardonnay. Where it doesn’t, you get Cabernet Sauvignon and Zinfandel baking in sunshine. Understanding this single mechanism (which gaps are open and which mountains are in the way) unlocks the logic of California’s AVA system. This Tour flies through the major regions with that framework as the lens.

Inside This Tour

This Tour covers California’s major wine regions from the North Coast through the Central Coast, with detailed pins on AVA boundaries, key vineyards, and producer profiles. Every map frame is fully interactive. Don’t just watch the flythrough. Click, drag, zoom, and rotate the 3D terrain to explore from any angle, then click every pin for the full content.

• The Pacific Ocean mechanism: fog gaps, the California Current, and how marine influence defines every AVA
• Napa Valley sub-AVAs: Oakville, Rutherford, Stags Leap District, Howell Mountain, Carneros, and more
• Sonoma’s diversity: Russian River Valley, Sonoma Coast, Alexander Valley, Petaluma Gap
• Central Coast: Paso Robles, Santa Barbara County, Sta. Rita Hills, Santa Lucia Highlands
• Grape variety distribution: why Cabernet dominates Napa and Pinot Noir dominates the coast
• Producer profiles across multiple AVAs with vineyard-level detail

The Pacific Factor & What Grows Where

For a geographic overview of all U.S. wine regions, see the USA Fast Map. Here, we focus on the climatic logic behind California’s grape distribution.

California grows over 100 grape varieties commercially, but the dominant plantings tell the story of the state’s climate gradient. Cabernet Sauvignon thrives in the warmest premium sites: the benchland and alluvial fans of Napa Valley (Oakville, Rutherford, Stags Leap District), the upper elevations of Howell Mountain and Spring Mountain, and the warmer inland reaches of Paso Robles. These are sites sheltered from direct marine influence, where long, warm days build the phenolic ripeness and tannic structure that define California Cabernet.

Where the Pacific reaches in, everything changes. Pinot Noir and Chardonnay dominate the fog-cooled corridors: Russian River Valley, Sonoma Coast (and the newly delineated West Sonoma Coast, approved in 2022 for its most extreme coastal sites), Carneros at the base of San Pablo Bay, the Santa Lucia Highlands above Monterey Bay, and the Sta. Rita Hills in Santa Barbara where east-west transverse valleys funnel ocean air directly into the vineyards. Syrah occupies a middle ground; serious cool-climate expressions come from Carneros and the Petaluma Gap, while richer, warmer styles thrive in Paso Robles and the Ballard Canyon AVA, the only appellation in North America where Syrah is the most-planted grape.

A Closer Look

Napa Valley

Thirty miles long and roughly five miles wide at its broadest, Napa Valley contains 17 sub-AVAs that reflect meaningful differences in elevation, soil, and fog exposure. The valley floor AVAs (Oakville, Rutherford, Stags Leap District) produce the ripe, age-worthy Cabernet Sauvignon that built Napa’s reputation. Mountain AVAs (Howell Mountain, Spring Mountain, Diamond Mountain) deliver more tannic, concentrated wines from volcanic and rocky soils above the fog line. At the southern end, Carneros (open to San Pablo Bay winds) is Pinot Noir and Chardonnay territory, and home to landmark vineyards like Hudson and Hyde that supply fruit to dozens of the state’s top producers.

Sonoma County

Sonoma is twice the size of Napa and far more climatically diverse, with AVAs spanning from fog-drenched coastal ridgetops to warm inland valleys. Russian River Valley is the most well-known for Pinot Noir and Chardonnay; the fog that pours through the river corridor every evening drops temperatures dramatically, extending the growing season and preserving acidity. Alexander Valley, warmer and more sheltered, is prime Cabernet Sauvignon country. The Petaluma Gap (AVA approved 2017) channels wind from Bodega Bay to San Pablo Bay, producing intensely flavored cool-climate Pinot Noir and Syrah.

Central Coast

The Central Coast stretches from the southern edge of San Francisco Bay to Santa Barbara, an enormous span that contains some of California’s most important regions. Paso Robles, with its extreme diurnal temperature swings (often exceeding 25°C (77°F)) and calcareous soils, has established itself as a hotbed for Rhône varieties and Cabernet Sauvignon. Santa Barbara County’s transverse ranges (mountains that run east-west rather than north-south) create direct ocean funnels into the Sta. Rita Hills and Santa Maria Valley, producing some of the state’s most Burgundian Pinot Noir and Chardonnay.

Producers Worth Knowing

Mayacamas, Mount Veeder, Napa Valley

One of Napa’s oldest continuously operating estates, founded in 1889 on the volcanic soils of Mount Veeder. Mayacamas makes Cabernet Sauvignon in a style that has more in common with 1970s Napa than with the modern valley floor: structured, tannic, restrained in fruit, and built to age for decades. It’s the antithesis of the lush, high-scoring Napa Cab paradigm, and that’s precisely why it matters.

Heitz Cellar, Napa Valley

Joe Heitz’s Martha’s Vineyard Cabernet Sauvignon (sourced from a single vineyard in Oakville) was one of the first California wines to demonstrate that a specific site could produce a consistently distinctive wine, vintage after vintage. The trademark eucalyptus and mint character of Martha’s Vineyard is unmistakable and has been debated for decades. Heitz remains a reference point for site-specific California Cabernet.

Colgin Cellars, Napa Valley

Ann Colgin’s estate is among the most sought-after cult Cabernet producers in California. The flagship wines (Tychson Hill, Cariad, and IX Estate) come from distinct Napa sites and showcase a style that balances power with polish. Production is tiny, demand is enormous, and the wines consistently rank among the highest-scoring Cabernets in the state.

Littorai, Sonoma Coast & Anderson Valley

Ted Lemon, who worked at Domaine Roulot and Domaine A. & P. de Villaine in Burgundy, brought that sensibility to California’s coolest coastal sites. Littorai’s single-vineyard Pinot Noirs and Chardonnays from the Sonoma Coast and Anderson Valley are among the most terroir-transparent wines made in the state: restrained, mineral, and site-specific in a way that few California producers achieve.

Stolpman Vineyards, Ballard Canyon, Santa Barbara

Located in Ballard Canyon on limestone soils with extreme diurnal temperature swings, Stolpman is one of California’s most compelling Syrah producers. The estate-grown wines show the lifted, peppery, savory character that Ballard Canyon’s direct ocean exposure encourages, a cool-climate Syrah style closer to the Northern Rhône than to most of California. They also produce excellent Roussanne and estate-grown Sangiovese.

Notable Vintages: California

Among the standout vintages of the past two decades, 2013 was a dream year for Napa Cabernet: a long, dry, sunny growing season produced one of the earliest harvests in decades with exceptional concentration and balance. 2016 offered near-perfect conditions with even temperatures, elegant structure, and is widely considered one of Napa’s strongest Cabernet vintages. 2005 delivered a cooler, longer season with balanced acids and excellent aging potential, still drinking beautifully. 2012 was long and mild across Northern California, producing wines with richness and texture that drew comparisons to the best of the preceding decade. 2019 brought moderate conditions and low yields.

On the difficult side, 2020 was defined by devastating wildfires across Northern California; many producers declassified or didn’t release their top wines due to smoke taint, and it remains a vintage to approach with caution. 2011 was cool, wet, and late, producing lighter, higher-acid wines that lacked the ripeness California is known for, but many are showing beautifully now. 2017 saw wildfires during harvest (though most fruit was already in), and while quality was strong for early picks, it was uneven overall.

Pins on this tour (280)

Every producer, vineyard, AVA and place marked with a pin on the California Tour, as loaded in the tour itself. Click any pin in the Tour for its profile.

Name	On the tour as
Producers (115)
Alban Vineyards	Producer
Anderson’s Conn Valley	Producer
Arnot-Roberts	Producer
Au Bon Climat	Producer
Austin Hope	Producer
Bedrock Wine	Producer
Bernardus	Producer
Blankiet Estate	Producer
Bonny Doon Vineyard	Producer
Brand	Producer
Brecon Estate	Producer
Bronco Wine Company	Producer
Bryant Family	Producer
Cain	Producer
Calcareous Vineyard	Producer
Ceritas	Producer
Chalk Hill Vineyards	Producer
Chalone Vineyard	Producer
Chappellet	Producer
Chateau St. Jean	Producer
Colgin	Producer
Continuum Estate	Producer
Corison	Producer
Dalla Valle	Producer
Daou Vineyards	Producer
David Arthur	Producer
David Bruce	Producer
Dehlinger Winery	Producer
Diamond Creek	Producer
Domaine Carneros	Producer
Dominus	Producer
DuMOL	Producer
Dunn Vineyards	Producer
E and J Gallo Winery	Producer
Eberle Winery	Producer
Failla Estate	Producer
Ferrari-Carano	Producer
Freeman Vineyard	Producer
Georis Winery	Producer
Gloria Ferrer	Producer
Goldeneye Winery	Producer
Grassini	Producer
Hanzell	Producer
Heitz Cellar	Producer
Heller Estate	Producer
Iron Horse	Producer
J. Lohr	Producer
Jonata	Producer
Jordan Winery	Producer
Joseph Phelps	Producer
Joseph Swan	Producer
Joullian Vineyards	Producer
Justin Vineyards	Producer
Kapcsándy	Producer
Kathryn Kennedy Winery	Producer
Keenan Winery	Producer
Kistler Vineyards	Producer
Kosta Browne	Producer
L’Aventure Winery	Producer
Laetitia Winery	Producer
Lewis Cellars	Producer
Littorai	Producer
Lompoc Wine Ghetto	Producer
Marcassin Winery	Producer
Martinelli	Producer
Mayacamas Vineyards	Producer
Mer Soleil	Producer
Merry Edwards	Producer
Michael David	Producer
Mount Eden	Producer
Mumm Napa	Producer
Navarro Vineyards	Producer
Oak Ridge Winery	Producer
Obsidian Ridge	Producer
Ovid	Producer
Paul Hobbs Winery	Producer
Peay	Producer
Peter Michael Winery	Producer
Philip Togni	Producer
Pine Ridge Vineyards	Producer
Pisoni Winery	Producer
Pride Mountain Vineyards	Producer
Producers	Producer
Quintessa	Producer
Rafanelli	Producer
Ramey	Producer
Renaissance Winery	Producer
Rhys Vineyards	Producer
Ridge Lytton Springs	Producer
Ridge- Monte Bello Estate	Producer
Rivers-Marie	Producer
Robert Sinskey	Producer
Rochioli Vineyards	Producer
Roederer Estate	Producer
Rudd	Producer
Sandlands	Producer
Saxum	Producer
Scar of the Sea	Producer
Shafer	Producer
Shannon Vineyards	Producer
Simi Winery	Producer
Spottswoode	Producer
Stags’ v. Stag’s	Producer
Star Lane	Producer
Stolpman	Producer
Stony Hill	Producer
Tablas Creek	Producer
Talbott Vineyards	Producer
Talley Vineyards	Producer
The Wine Group	Producer
Trefethen	Producer
Vérité	Producer
Wente Vineyards	Producer
Williams Selyem	Producer
Woodbridge Winery	Producer
Vineyards (37)
Ampelos Vineyard	Vineyard
Araujo- Eisele Vineyard	Vineyard
Beckstoffer To Kalon	Vineyard
Belle Côte Vineyard	Vineyard
Bien Nacido Vineyard	Vineyard
Camp Meeting Ridge Vineyard	Vineyard
Cerise Vineyard	Vineyard
Clark and Telephone Vineyard	Vineyard
Duckhorn Three Palms	Vineyard
Fiddlestix Vineyard	Vineyard
Garys’ Vineyard	Vineyard
Hirsch Vineyards	Vineyard
Houyi Vineyard	Vineyard
Hudson Vineyard	Vineyard
Hyde Vineyard	Vineyard
Jackass Vineyard	Vineyard
Kiser en Bas	Vineyard
Kiser en Haut	Vineyard
La Carrière Vineyard	Vineyard
La Encantada	Vineyard
La Rinconada	Vineyard
Las Alturas	Vineyard
Les Pavots Vineyard	Vineyard
Ma Belle-Fille Vineyard	Vineyard
Monument Tree Vineyard	Vineyard
Pisoni Vineyard	Vineyard
Presqu’ile Vineyard	Vineyard
Rosella’s	Vineyard
Sanford and Benedict Vineyard	Vineyard
Savoy Vineyard	Vineyard
Sea Smoke Vineyard	Vineyard
Sea View Ridge Vineyard	Vineyard
Seaview Estate Vineyards	Vineyard
Solomon Hills Vineyard	Vineyard
Stagecoach Vineyard	Vineyard
Three Sisters Vineyard	Vineyard
Wendling Vineyard	Vineyard
AVAs and places (123)
Adelaida District	AVA
Alexander Valley	AVA
Alisos Canyon	AVA
Alta Mesa	AVA
Anderson Valley	AVA
Arroyo Grande	AVA
Arroyo Seco	AVA
Atlas Peak	AVA
Ballard Canyon	AVA
Bennett Valley	AVA
Borden Ranch	AVA
Cachagua Valley	Place
California Shenandoah Valley	AVA
Calistoga	AVA
Carmel Valley	AVA
Carneros	AVA
Central Coast	AVA
Chalk Hill	AVA
Chalone	AVA
Chiles Valley	AVA
Cienega Valley	AVA
Clear Lake	AVA
Clements Hills	AVA
Cole Ranch	AVA
Comptche	AVA
Conn Valley	Place
Contra Costa	AVA
Coombsville	AVA
Cosumnes River	AVA
Creston District	AVA
Crystal Springs	AVA
Cucamonga Valley	AVA
Diamond Mountain District	AVA
Dry Creek Valley	AVA
Eagle Peak Mendocino County	AVA
Edna Valley	AVA
El Dorado Hills	Place
El Pomar District	AVA
Fair Play	AVA
Fiddletown	AVA
Fort Ross-Seaview	AVA
Fountaingrove	AVA
Gabilan Mountains	AVA
Green Valley	AVA
Guenoc Valley	AVA
Hames Valley	AVA
Happy Canyon	AVA
High Valley	AVA
Howell Mountain	AVA
Jahant	AVA
Knights Valley	AVA
Lime Kiln Valley	AVA
Livermore Valley	AVA
Los Alamos	Place
Los Olivos	AVA
McDowell Valley	AVA
Mendocino	AVA
Mendocino Ridge	AVA
Mokelumne River	AVA
Monterey	AVA
Moon Mountain	AVA
Mount Veeder	AVA
Mt. Harlan	AVA
North Yuba	AVA
Northern Sonoma	AVA
Oak Knoll	AVA
Oakville	AVA
Oakville Bench	Place
Paicines	AVA
Paso Robles Estrella District	AVA
Paso Robles Geneseo District	AVA
Paso Robles Highlands District	AVA
Petaluma Gap	AVA
Pine Mountain-Cloverdale Peak	AVA
Pope Valley	Place
Potter Valley	AVA
Pritchard Hill	Place
Red Hills Lake County	AVA
Redwood Valley	AVA
Rockpile	AVA
Russian River Valley	AVA
Rutherford	AVA
Rutherford Bench	Place
Sacramento Delta	Place
San Antonio Valley	AVA
San Benito	AVA
San Bernabe	AVA
San Francisco Bay	Place
San Juan Creek	AVA
San Lucas	AVA
San Miguel District	AVA
San Pablo Bay	Place
San Ysidro District	AVA
Santa Clara Valley	AVA
Santa Cruz Mountains	AVA
Santa Lucia Highlands	AVA
Santa Margarita Ranch	AVA
Santa Maria Valley	AVA
Santa Ynez Valley	AVA
Seiad Valley	AVA
Sierra Foothills	AVA
Silverado Trail	Place
Sloughhouse	AVA
Soda Springs	Place
Solomon Hills	Place
Sonoma Mountain	AVA
Sonoma Valley	AVA
Spring Mountain District	AVA
St. Helena	AVA
Sta. Rita Hills	AVA
Stags Leap District	AVA
Star Lane	Place
Suisun Bay	Place
Temecula Valley	AVA
Templeton Gap	Place
Templeton Gap District	AVA
Ventura	Place
West Sonoma Coast	AVA
Wild Horse Valley	AVA
Willow Creek District	AVA
York Mountain	AVA
Yorkville Highlands	AVA
Yountville	AVA
Cities (5)
Los Angeles	City
Malibu	City
Napa	City
Sacramento	City
San Francisco	City

Hopefully this index is useful on its own. To explore these regions interactively, with every boundary on real terrain and a full profile for each, start a 15-day free trial. To see what one of these maps is like first, a different map is unlocked for everyone every day. For the open maps of the same AVAs, see the United States Fast Map and the North Coast and Central Coast 3D maps; the Tours User Guide explains the controls.