The Sonoma Valley AVA centers on the Sonoma Valley (also known as The Valley of the Moon) in the southern portion of the county. The appellation is bordered by two mountain ranges: the Mayacamas Mountains to the east and the Sonoma Mountains to the west.
Along with being the area where so much of Sonoma County's winemaking history took place, the area is known for its unique terroir, with Sonoma Mountain protecting the area from the wet and cool influence of the nearby Pacific Ocean.
One finds a wide disparity between valley floor and mountain soils; those found in flatter, valley areas tend to be quite fertile, loamy and have better water-retention while the soils at higher elevations are meager, rocky and well-drained. In general, the structure, rather than the composition of the soil, is the deciding factor where grape plantings are concerned.
Our Sonoma Valley Vineyards
Monte Rosso Vineyard | Cabernet Sauvignon planted from 900-1,200 ft. elevation
I've loved the Cabernet from Monte Rosso Vineyard for as long as I can remember, and I consider myself lucky that my good friend Mike Martini - whose family bought the ranch in the late 1930's - continues to share a couple of blocks with me every year. With elevations that range from 900 to 1,200 feet, the aptly named (by Mike's grandfather) Monte Rosso is a classic mountain vineyard, resting firmly on the southwest side of the Mayacamas mountain range in the Sonoma Valley AVA. Sitting above the fog line with undulating hillsides, the vineyard's iron-rich soils are red, rocky and well drained. Vines struggle for nutrients here, and the rich concentrated fruit shows it. This harvest marks the 9th vintage for this wine.