Bedrock Wine Co. was founded in 2007 in a Sonoma chicken coop. But it’s not an exaggeration to say that Morgan Twain-Peterson, Bedrock’s founder and winemaker, has been in the wine business since birth. His father is Joel Peterson, founder of Ravenswood, the iconoclastic Sonoma producer known for powerhouse Zinfandel, and Morgan began blending his own wine at age five. After college in New York, Morgan worked in various areas of the wine industry before returning to California and starting Bedrock, named for one his family’s vineyards. He sources grapes from Bedrock and other vineyards throughout the region and often seeks out old vine vineyards. Bedrock’s flagship wine is the Bedrock Heritage, usually a blend of mostly Zinfandel and Carignan. Bedrock also makes Zinfandel, Cabernet Sauvignon, Pinot Noir, Sauvignon Blanc and many red and white blends. Reviews have been highly complimentary. Robert M. Parker Jr. has written that Twain-Peterson “has hit the wine scene with a bang, producing vibrant, personality-filled, delicious wines from extremely old vines and, in some cases, virtually unknown grapes, such as Aubun, Teredalgo, Trousseau Noir, Le Noir, Mission, Trousseau Gris, Grand Noir and Abouriou, as well as Zinfandel, Syrah, Petite Sirah, Grenache, Carignan, Alicante Cabernet Sauvignon, Merlot and Tempranillo. Many of these sites are heritage terroirs from the ancient past which, until Peterson's arrival, were largely ignored or were co-mingled into some innocuous industrial blend. Bedrock's portfolio is filled with exciting wines.” Twain-Peterson has earned the distinction of becoming a Master of Wine by successfully completing the rigorous program at The Institute of Masters of Wine. It is one of the mostly highly regarded qualifications in the world of fine wine.
Spring Mountain AVA is above the town of St. Helena on the eastern slopes of the Mayacamas Mountains. There is no actual Spring Mountain, but the name has traditionally been used for the area, which includes many streams and springs. Spring Mountain was awarded appellation status in 1993 and it includes about 1,000 vineyard acres. Vineyard elevations are high, from 400 to 2,600 feet above sea level. Because of the altitude of most vineyards, which are above the fog line, mornings become warm earlier than vineyards on the valley floor, though the afternoons are cooled by maritime winds. The result is an exceptionally long growing season. Cabernet Sauvignon is the most frequently planted grape by acreage, followed by Merlot, Cabernet Franc and Chardonnay.