Storybook Mountain Vineyards sits four miles northwest of Calistoga at elevations reaching 1,250 feet on an eastern slope of the Mayacamas Mountain Range. Founded in 1883 as Grimm’s Vineyard and Wine Vaults and reestablished in 1976 by Jerry and Sigrid Seps, the estate is one of Napa Valley’s most distinctive properties: a certified organic mountain vineyard with 130-year-old caves and an unbroken focus on Zinfandel that has earned recognition from the world’s top critics.

A Mountain Estate with Deep Roots

The story of Storybook Mountain begins in 1883, when Adam Grimm purchased 400 acres of high-elevation land above Calistoga and planted extensive vineyards. In 1889, his brother Jacob joined him, and together they directed the construction of three large wine caves dug into the property’s volcanic rhyolite rock by Chinese laborers. The caves provided a natural aging environment with year-round temperatures between 55 and 60 degrees and high humidity, ideal conditions for barrel aging.

By 1919, Jacob was producing sacramental and medicinal wines permissible during Prohibition. After Prohibition ended, the winery fell silent, and a devastating fire in 1964 destroyed the vineyards. Only the caves survived.

In 1976, Jerry Seps, then a tenured professor of European history, and his wife Sigrid purchased the abandoned 90-acre site. Legendary winemaker Andre Tchelistcheff advised them that the red clay-loam soils and eastern exposures of the hills above Calistoga were the finest place in California to plant Zinfandel. The Seps replanted accordingly and renamed the property Storybook Mountain to honor both its fairytale beauty and its original founders.

Robert Parker characterized Storybook Mountain as “representing the pinnacle of wine quality in California” and one of the six best Zinfandels in the world.

Zinfandel Above All

Storybook Mountain released its first Zinfandel in 1983, and the wine earned a gold medal immediately. Six years later, the 1984 Reserve Zinfandel became the highest-rated Zinfandel in history. The estate’s commitment to the variety runs deep: in 1990, Jerry Seps co-founded Zinfandel Advocates and Producers, the organization that transformed how California Zinfandel is understood around the world.

The mountain site shapes the wines fundamentally. The vineyard is divided into over 100 separate micro-blocks based on variety, sun exposure, rootstock, and clone. Morning sun opens the vines early, while the oblique angle to afternoon sun prevents the heat accumulation that causes overripe flavors. Cooling breezes from the Russian River, funneled through the Mayacamas range, keep temperatures often ten degrees cooler than the valley floor. The result is Zinfandels of structure and complexity rather than heat and jammy weight.

In 1994, the US Embassy in Stockholm served Storybook Mountain Zinfandel to honor that year’s Nobel laureates. The wines have appeared at the White House under three Presidents. Wine and Spirits Magazine named Storybook “Artisan Winery of the Year” in 2003 and has included the estate in its Top 100 Wineries in the World eighteen times.

Cabernet Sauvignon and the Red Bordeaux Program

While Zinfandel remains the flagship, Jerry Seps spent years mapping the estate for blocks where red Bordeaux varieties might thrive. He identified cooler, north-facing parcels with thinner soils and began planting Cabernet Sauvignon there in 1994. The first Storybook Mountain Cabernet Sauvignon was released in 2005 and quickly earned critical attention in its own right.

The wines benefit from the same forces that shape the Zinfandels: high elevation, organic farming, and natural temperature modulation from the Mayacamas topography. The estate also grows Viognier, which provides contrast to the concentrated mountain reds. Understanding how mountain terroir translates to white Rhone varieties is part of what makes tasting at Storybook informative for anyone serious about California wine regions.

For context on how these varieties fit the broader Napa landscape, the Napa Valley wine guide covers the region’s AVA structure and climate in depth. Storybook’s mountain position places it firmly in the tradition of California’s high-elevation producers, a category that continues to generate some of the state’s most age-worthy reds.

The Historic Caves

The 130-year-old caves at Storybook Mountain are among the oldest in Napa Valley still in active use. Dug into volcanic rhyolite by Chinese laborers in 1889, they were documented that July in a publication called the Viticulturist: “Mr. Grimm is now engaged in driving two tunnels 10 x 100 feet into the mountainside for a cellar, where he intends to store and age his wines.” A third tunnel was added later, and a round room was excavated between two tunnels to serve as a riddling room for sparkling wine aging.

Today the caves hold more than 400 French, American, and Hungarian oak barrels. The consistent temperature and humidity that make them ideal for barrel aging also make them the tasting venue for estate visitors. Tasting in a cave that has been aging wine continuously since 1889 provides a sensory context that no modern tasting room can replicate.

The estate is certified organic and practices sustainable farming throughout, relying on its clay-loam soils and natural rainfall patterns rather than irrigation for most mature vines. The northernmost section of Napa Valley receives significantly more spring rainfall than southern districts like Carneros, which supports dry-farming at elevations where other estates would struggle.

The Seps Family Legacy

Jerry and Sigrid Seps have operated Storybook Mountain for nearly fifty years, building an estate recognized globally while keeping it firmly family-owned. Their daughter Colleen grew up at the property, eventually taking on winemaking responsibilities as her father shifted focus to the estate vineyard. Colleen’s husband Rick Williams oversees sales and marketing. In 2023, their youngest daughter Elena joined the business after completing an environmental studies degree at UC Santa Barbara, adding a third generation to the team.

The family’s approach reflects the spirit of the original founders: a willingness to invest in the long term, resist commercial pressure to expand volume, and let the mountain site express itself rather than forcing a particular style. Wines are made in small quantities and often sell through the winery’s wine club before reaching retail. Visiting in person remains the most reliable way to taste the full range.

For those exploring Napa’s mountain AVAs, Storybook pairs naturally with stops at other high-elevation producers in the region. The California Cabernet Sauvignon guide provides useful context on how mountain versus valley-floor sites differ in style and aging potential, which is directly relevant to understanding what Storybook’s location delivers.

Storybook Mountain Vineyards: common questions