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The Red Hills Are Not Just For Reds Anymore: Achieving A Complex, Elegant Sauvignon Blanc Style On A Mountain-Top

Today, nearly all wineries and growers in the relatively new AVA Red Hills are producing reds — primarily Cabernet Sauvignon, but also Syrah, Zinfandel and others. And, many articles have already been written about the ultra-premium quality of red grapes coming from this region. Now, Fortress Vineyards surmounts the red-only reputation, proving that ultra-premium Sauvignon Blanc grapes and wine can be achieved on a mountain vineyard in the Red Hills.

Fortress Vineyards is a vineyard positioned high above Clear Lake 2,000-2,400 feet and the valley floor on Mount Konocti. This was virgin land prior to the development of the vineyard in 1998. It benefits from well-drained soils, outstanding sun exposure and the constant cooling breezes moving from the lake and along the mountains on the North-South vector. The Snider family began growing high-quality grapes over fifteen years ago when they purchased a 90 acre parcel of land in the then little-known Knights Valley appellation of Sonoma County. Years later they turned their attention to Lake County, which now includes the Red Hills AVA and is being touted as one of the "up-and-coming" stars in Northern California.

The Wine: Sauvignon Blanc
Lake County has a reputation for producing quality Sauvignon Blanc. Most of the Sauvignon Blanc plantings however, have been on valley floor with vigorous growth and high yields. The team at Fortress Vineyards knows from close to 20 years of growing Cabernet Sauvignon, Chardonnay and Sauvignon Blanc grapes that wine quality is a reflection of terroir and viticultural practices. When choosing to make this first vintage, the Snider family examined the steep vineyard mountain site at 2,000 feet elevation and with well-drained red volcanic soils. The vines produced moderate yields, small bunches and small berries, resulting in highly concentrated and complex flavor profiles. This is key to distinguishing wine quality emanating from the typical Sauvignon Blanc with larger bunches, larger berries and a much simpler flavor profile. They turned to the Sauvignon Musque clone that exhibits flavor profiles very similar to the wines produced in Graves in Bordeaux, France.

The Grape: Sauvignon Musque
Fortress Vineyards focuses only on one grape varietal- Sauvignon Musque "the flamboyant Bordeaux clone" — and on one wine — Sauvignon Blanc made from 100% Sauvignon Musque grapes. In 1998, a large vineyard block with the Sauvignon Musque clone was planted at the Red Hills Lake County vineyard and more vines were recently planted at their Knights Valley property. "Making the commitment to the Sauvignon Musque clone is based on our belief that there is a niche to be filled in the Sauvignon Blanc category: an aromatic, fruit-driven style with a softer mouth feel that is still true to the varietal character, with racy acidity," says owner Barbara Snider.

A growing number of premium Sauvignon Blanc wineries, primarily in Napa and Alexander Valleys (made by wineries such as Araujo, Selene, Cakebread, Murphy-Goode), are using some Sauvignon Musque to varying degrees in their wines, but very few are concentrating exclusively on this style.

The Winemaking Approach
Fortress Vineyards developed its winemaking approach over a two-year period by making Sauvignon Musque wine from grapes picked at various brix (sugar) levels to better understand the potential of this clone. The experiment led to the decision to pick the grapes at two different times and two different sugar levels. Gary Snider explains: "During our earlier trials, we learned that at low brix (sugar), the Sauvignon Musque exhibits the same acidity and structure as the more widely used Sauvignon Blanc Clone #1. However, at a higher brix, the Sauvignon Musque clone exhibits fresh combinations of tropical, citrus, floral, and even exotic fruit in a honey-like elixir with great viscosity. The Sauvignon Musque is totally unique in this respect." For the 2004 vintage, the first pick was at 22.5° brix to retain the natural acidity of the Sauvignon Blanc and the second at 26° brix to achieve mature, full flavors. A small portion (about 30%) of this later pick undergoes malolactic fermentation in 2-3 year-old French oak barrels. The final blend has layers of complexity and additional weight.

Fortress Sauvignon Blanc:
Wine release date: April 2005
Number of cases produced: 1,400 cases
Retail cost: $20
100% Sauvignon Blanc, Musque clone
TA: 5.58
Alcohol: 14.2%

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Press Kit

Background

Bios: Gary and Barbara Snider, Owners (PDF, 15 KB)

Bios: Mark Burch, Winemaker and Mike Abba, Viticulturalist (PDF, 11 KB)

Fortress Viticultural Techniques (PDF, 11 KB)

Fortress Sauvignon Blanc: The Wine (PDF, 11 KB)


Press Release

The Red Hills Are Not Just For Reds Anymore (PDF, 53 KB)
 

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