Fountaingrove District

The Fountaingrove District received its designation as an AVA in 2015. Situated on 38,000 acres, Fountaingrove is located in Sonoma County. Most of the soils are derived from Sonoma Volcanic and Franciscan Formation bedrock and consist of volcanic materials, such as pumiceous ash flow tuff and basalt lava. The Fountaingrove District is located on the western slopes of the Mayacmas Mountains and features low, rolling hills as well as higher, steeper mountains with southwest-facing slopes. The Sonoma Mountains, along the region's southwestern boundary, shelter Fountaingrove from the strongest marine breezes and heaviest fog, but an air gap in the mountains does allow some cooling air and fog into the region. The moderate temperatures within the Fountaingrove District are suitable for growing Cabernet Sauvignon, Chardonnay, Sauvignon Blanc, Merlot, Cabernet Franc, Zinfandel, Syrah, and Viognier grape varieties.