Yamhill-Carlton AVA

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.^[4]

Yamhill-Carlton AVA

Wine region
Penner-Ash Winery
Type	American Viticultural Area
Year established	2004[1]
Country	United States
Part of	Oregon, Willamette Valley AVA
Other regions in Oregon, Willamette Valley AVA	Chehalem Mountains AVA, Dundee Hills AVA, Eola-Amity Hills AVA, Laurelwood District AVA, Lower Long Tom AVA, McMinnville AVA, Ribbon Ridge AVA, Tualatin Hills AVA, Van Duzer Corridor AVA,
Climate region	Maritime[2]
Soil conditions	Ancient sedimentary silt-loam[3]
Total area	60,000 acres (24,281 ha)[4]
Size of planted vineyards	1,200 acres (486 ha)[4]
No. of vineyards	110[5]
Varietals produced	Chardonnay, Cabernet Franc, Dolcetto, Gamay Noir, Gewurztraminer, Lagrein, Melon de Bourgogne, Muscat, Pinot blanc, Pinot gris, Pinot Meunier, Pinot noir, Riesling, Sauvignon Blanc, Scheurebe, Syrah, Tempranillo, Viognier[6][7]
No. of wineries	52[5]