Mendocino County is has over 15,500 acres of vines within nine distinct grape growing regions. With less than 60 wineries but over 340 grape growers, Mendocino County holds a strong regional emphasis on organic grape growing and a strong belief in being good stewards of the land by maintaining the true essence of the wine produced. Mendocino County grows and produces a large portfolio of grape varieties that merge cutting edge technology with traditional farming and old-world winemaking techniques. Mendocino is home to many California red wine varieties, including Zinfandel, Syrah, Petite Sirah, Carignan, Charbono and Grenache. In cooler regions, Pinot Noir, Chardonnay and Gewurztraminer grapes as well as plantings of Pinot Gris, Sauvignon Blanc, Riesling, Muscat, Cabernet Sauvignon and Merlot thrive. Soils tend to be low in calcium, have low pH and are moderately fertile. In the valleys, soils are frequently clay up to six feet deep while on the slopes fractured rock is between 18 inches to four feet under shallow soils.