The Alexander Valley is a Californian American Viticultural Area (AVA) just north of Healdsburg in Sonoma County. It is home to many wineries and vineyards, as well as the city of Cloverdale. It is the largest and most fully planted wine region in Sonoma. Highway 101 runs through the valley, and the Russian River flows down the valley, surrounded by vineyards on both sides. From the higher elevations of the valley rim, there is a view as far south as Taylor Mountain and Sonoma Mountain. The region was named for Cyrus Alexander, owner of a part of the Rancho Sotoyome Mexican land grant, in 1847. Granted AVA status in 1984, the boundaries of the appellation are defined in the Code of Federal Regulations, Title 27, Section 9.53.
The Yamhill-Carlton AVA is an American Viticultural Area located in both Washington County and Yamhill County, Oregon. It is entirely contained within the Willamette Valley AVA, and surrounds the towns of Carlton and Yamhill. The mountain ridges surrounding the AVA form a horseshoe shape, and most of the vineyards are located on south-facing slopes. The AVA includes only land between 200 feet (61 m) and 1,000 feet (305 m) above sea level where marine sediments are some of the oldest soils in the Willamette Valley and create unique conditions for viticulture. The region is in the rain shadow of the 3,500 feet (1,100 m) Oregon Coast Range, a short distance to the west.
The Bennett Valley AVA is an American Viticultural Area located in Sonoma County, California. The boundaries of this appellation lie completely within the North Coast AVA, almost completely within the Sonoma Valley AVA and overlaps into some areas of the Sonoma Coast AVA and Sonoma Mountain AVA. The region was granted AVA status on December 23, 2003 following the petition of Matanzas Creek Winery. The AVA is surrounded to the south, east and west by the Sonoma Mountains and to the north by the city of Santa Rosa, California. The region receives a moderating effect on its climate from Pacific Ocean through the cool coastal fogs and breeze that creep into the area from the southwest through Crane Canyon between Sonoma Mountain and Taylor Mountain. Barbera, Cabernet Sauvignon, Cabernet Franc, Chardonnay, Grenache, Merlot, Pinot noir, Sauvignon blanc and Syrah are the leading grape varieties planted.
The Chalk Hill AVA is an American Viticultural Area (AVA) located in Sonoma County, California. The boundaries of the wine appellation cover the northeast corner of the Russian River Valley AVA. The majority of vineyards are located to the east of U.S. Route 101, near the town of Windsor. The name Chalk Hill comes from the unique volcanic soil of chalky white ash which has shown itself to perform well with planting of white wine varietals like Chardonnay and Sauvignon blanc. The majority of the region's wineries are located on the western slopes of the Mayacamas Mountains.
The Sonoma Coast AVA is an American Viticultural Area in Sonoma County, California, United States containing more than 500,000 acres (2,000 km2), mostly along the coastline of the Pacific Ocean. It extends from San Pablo Bay to the border with Mendocino County. The appellation is known for its cool climate and high rainfall relative to other parts of Sonoma County. The area has such a broad range of microclimates that petitions have been made to the United States Department of the Treasury Alcohol and Tobacco Tax and Trade Bureau for the creation of sub-AVAs such as the Fort Ross-Seaview AVA which was approved in December 2011.
The Edna Valley AVA is an American Viticultural Area located in San Luis Obispo County, California encompassing the rural town of Edna, which is south of the county seat San Luis Obispo and north of the small coastal town Arroyo Grande. It is a sub-region of the larger Central Coast AVA. The valley is roughly bounded by Lake Lopez to the south and Islay Hill to the north. The valley runs east to west, bounded to the west by the Santa Lucia Mountains. It is surrounded by volcanic mountains and characterized by black humus and clay-rich soils. With moderate sunshine, cool maritime fog, and rich oceanic and volcanic soils, the Edna Valley appellation has California's longest growing season. The valley is kept cool by breezes from the Pacific Ocean and morning fog. The extended growing season gives complex flavors to the grapes.
The North Yuba AVA is an American Viticultural Area in Yuba County, California, United States. The appellation is located in the Sierra Nevada Mountains, and the soil is primarily volcanic, with dense plutonic rock. Renaissance Vineyard and Winery is the largest producer in the region, with 44 acres (18 ha) of terraced vineyards planted in Cabernet Sauvignon, Syrah, Grenache, Viognier, and Roussanne.
The Seiad Valley AVA is an American Viticultural Area in Siskiyou County, California, located adjacent to the Klamath River and close to the border with Oregon. The wine region was granted AVA status in 1994 despite having only one commercially bonded winery in operation, Seiad Valley Vineyards, which has since ceased operations. The valley floor is covered in the excavated rock left behind as tailings from gold mining. The exposed rocks absorb and retain heat from the sun, moderating the effects of a cool, mountain valley climate. There are approximately 3 acres (1 ha) of Riesling being grown inside the geographic boundaries of the AVA.
The Saddle Rock-Malibu AVA is an American Viticultural Area in the Santa Monica Mountains, within western Los Angeles County, California.
The Santa Ynez Valley AVA is an American Viticultural Area located in Santa Barbara County, California and was established on May 16, 1983 by the Alcohol and Tobacco Tax and Trade Bureau (TTB). It is part of the larger Central Coast AVA, and contains the greatest concentration of wineries in Santa Barbara County. The valley is formed by the Purisima Hills and San Rafael Mountains to the north and the Santa Ynez Mountains to the south creating a long, east-west corridor with very cool temperatures on the coast that become progressively warmer inland. The Santa Ynez River flows east to west on the valley floor toward the Pacific Ocean. As of 2021, the Santa Ynez Valley contains four other established viticultural areas: Sta. Rita Hills on its western boundary; Ballard Canyon and Los Olivos District occupying the center region; and Happy Canyon on the eastern border. Chardonnay is the most planted grape variety in the cooler, western portion of the valley while Rhône varieties thrive in the eastern locales.
The Borden Ranch AVA is an American Viticultural Area located in both Sacramento County and San Joaquin County, California. It is part of the larger Lodi AVA. Located in the east central portion of the Lodi area, Borden Ranch vineyards are located at altitudes between 73 feet (22 m) and 520 feet (158 m) above sea level. The northern edge of the AVA is defined by Laguna Creek and the southern edge is defined by Dry Creek, both of which flow out of the foothills of the Sierra Nevada Mountains into the San Joaquin Valley. The soils in Borden Ranch is alluvial with cobbles, clay pan, and clay loam. Red wine grape varietals are the most commercially important grapes in the area.
The Ozark Highlands AVA is an American Viticultural Area located in southern Missouri in the Ozark Mountains. The appellation includes land from just east of Jefferson City in the north to the Eleven Point River in the south, including parts of Phelps, Maries, Osage, Gasconade, Franklin, Crawford, Shannon, Dent, Texas, Reynolds, and Pulaski counties. The AVA was established in 1987. Contained entirely within the larger Ozark Mountain AVA, the area is drier than other parts of the state, but the soil of sandy loam and clay retains moisture well. The first grapevines in the Ozark Highlands were planted by Italian immigrants. All variety of grapes are grown in the area, including Vitis vinifera, Vitis labrusca, and French hybrids.
The Ozark Mountain AVA is an American Viticultural Area located in northwest Arkansas, southern Missouri, and northeast Oklahoma. The sixth largest American Viticultural Area in total size, Ozark Mountain AVA covers 3,520,000 acres (1,424,493 ha). Five smaller AVAs have been established within its boundaries, to recognize those distinct regions whose climate, vineyard soil, or other growing conditions create unique areas for viticulture. The hardiness zone in the region varies from 6a to 7b.
The Fennville AVA is an American Viticultural Area located in Allegan County, Michigan. Entirely contained within the larger Lake Michigan Shore AVA, the Fennville AVA borders Lake Michigan on the west, the Kalamazoo River on the north, a game reserve to the east, and the Black River on the south. The soil in the Fennville area is different from surrounding areas, primarily glacial sandy soils. The area's climate is moderated by the nearby Lake Michigan, and few days in the summer growing season exceed 90 °F (32 °C). Grape growers in the area have had success with both Vitis vinifera and Vitis labrusca wine grapes. The hardiness zone is 6a.
The Altus AVA is an American Viticultural Area located in the Arkansas River Valley in Arkansas near the town of Altus in Franklin County. The wine region is entirely contained within the Arkansas Mountain AVA, which is in turn contained within the larger multi-state Ozark Mountain AVA. The Altus region is a plateau above the Arkansas River to the south and below the Boston Mountains to the north. The soil is gravel and loam, with a high acidity. Five wineries in the area produce nearly 1 million US gallons (3,800,000 L) of wine per year.
The Isle St. George AVA is an American Viticultural Area located on North Bass Island, Ohio, an island in Lake Erie. The only town on the Ottawa County island is also called Isle Saint George, although the "Saint" in the AVA name must be abbreviated as "St." to be used on wine labels. Over half of the island used to be planted with grapevines. Now only 44% of the island has grapes. Lake Erie is warmer than the other Great Lakes, providing a moderating and warming effect on the local climate. Temperatures on the island during the growing season can be warmer than on the mainland. Cool climate varietals such as Catawba, Delaware, Gewürztraminer, Pinot noir, and Riesling are the most important in Isle St. George.
The Arkansas Mountain AVA is an American Viticultural Area located in the Ozark Mountains of northwestern Arkansas. It is part of the larger Ozark Mountain AVA, which also includes regions in Missouri and Oklahoma. The smaller Altus AVA is entirely contained within the Arkansas Mountain AVA. The Arkansas Mountain AVA includes 2,880,000 acres (1,165,000 ha), making it the ninth largest AVA as of 2008.
The Cumberland Valley AVA is an American Viticultural Area located in Washington County in west-central Maryland and Franklin and Cumberland counties in south-central Pennsylvania. Only 100 acres (40 ha) of the 765,000 acres (309,585 ha) included in the wine appellation are planted to grapevines, predominantly on high terraces over the Potomac River and on the slopes of South Mountain. The soil in the area is alkaline limestone. The Cumberland Valley mainly has a hot-summer humid continental climate (Dfa) and is mainly in hardiness zone 6b with 7a at the ends. The AVA extends from the Potomac to the Susquehanna River.
The Linganore AVA is an American Viticultural Area located in north central Maryland and includes parts of Frederick and Carroll counties. The area is a part of the Piedmont Plateau northwest of Baltimore, a transition area between the mountains to the west and the coastal plain to the east. Linganore has a warm and wet climate, with gravel and loam soils. The hardiness zones are 7a and 6b.
The Long Island AVA is an American Viticultural Area encompassing Nassau and Suffolk counties of New York, including the smaller offshore islands in those counties. The AVA was established in 2001, over 15 years after two smaller AVAs were created at the eastern end of Long Island. The Long Island AVA designation was promoted as a benefit for some wineries located just outside the two smaller AVAs and for wineries that wanted to create wines that use blends from vineyards in different parts of the island. It was also developed and promoted as a consumer protection of the Long Island name; AVAs require that a minimum of 85% of the fruit used in the designated wine is grown within the borders of the region. The "Long Island" AVA was authored by veteran Long Island winemaker Richard Olsen-Harbich who also authored "The Hamptons, Long Island" and "North Fork of Long Island" AVAs in the mid-1980s.
