Spring Mountain District AVA
| Wine region | |
| Type | American Viticultural Area |
|---|---|
| Year established | 1993 |
| Years of wine industry | 159 |
| Country | United States |
| Part of | Napa Valley AVA |
| Other regions in Napa Valley AVA | Atlas Peak AVA, Calistoga AVA, Chiles Valley AVA, Diamond Mountain District AVA, Howell Mountain AVA, Los Carneros AVA, Mt. Veeder AVA, Coombsville AVA Oak Knoll District of Napa Valley AVA, Oakville AVA, Rutherford AVA, St. Helena AVA, Stags Leap District AVA, Wild Horse Valley AVA, Yountville AVA |
| Climate region | Region II |
| Precipitation (annual average) | 37 inches (940 mm) |
| Soil conditions | moderately deep and deep residual upland soils with mix derived from volcanic and sedimentary parent material |
| Total area | 8,600 acres (13 sq mi) |
| Size of planted vineyards | 800 acres (320 ha) |
| No. of vineyards | 31+ |
| Grapes produced | Black Muscat, Cabernet Franc, Cabernet Sauvignon, Chardonnay, Merlot, Petit Verdot, Petite Sirah, Pinot Noir, Riesling, Sauvignon Blanc, Syrah / Shiraz, Zinfandel |
| No. of wineries | 13 |
Spring Mountain District is an American Viticultural Area (AVA) located in the Napa County, California. It was established as the nation's 120th, the state's 69th and the county's seventh appellation on May 13, 1993 by the Bureau of Alcohol, Tobacco and Firearms (ATF), Treasury after reviewing the petition submitted by Michael Marston of Marston Vineyards and Fritz Maytag of York Creek Vineyards, on behalf of local vintners, proposing a viticultural area in Napa County named "Spring Mountain."
On December 2, 1992, the petitioner wrote to ATF to amend Its original
petition by changing the proposed viticultural area name to "Spring Mountain District." Since the original petition had included evidence which supported both names, ATF Issued an amended notice of proposed rulemaking on February 17. 1993, and allowed a 30-day comment period to obtain comments on the amended name. On the basis of the information in the original petition and material presented in the comments of Spring Mountain Vineyard and the amended petition, ATF adopted the viticultural area with the boundaries proposed, and the name "Spring Mountain District."
The viticultural area encompasses about 8,600 acres (13.4 sq mi) and at the outset, cultivated approximately 1,000 acres (400 ha) on over thirty vineyards. Spring Mountain District lies entirely as a sub-appellation within Napa Valley AVA. The terrain consists primarily of east-facing slopes of varying steepness, ranging in elevation from 400 to 2,600 feet (120–790 m). Given the small crop yields on hillsides, the region represents less than 2% of Napa Valley wine.