n 1998 Robert Foley Vineyards bottled its flagship Claret, a Cabernet Sauvignon/Merlot blend, and has since expanded and diversified its production to offer more of the big reds Bob is famous for: Petite Sirah, Merlot, Charbono, the limited-release Howell Mountain Cabernet, and Bob's latest creation, The Griffin a blend of the best in the red cellar).

Bob's winery facility on the summit of Napa County's Howell Mountain near Angwin, houses more than 1,000 barrels in an extensive cave system that was completed in 2008 for the production of wines for the Robert Foley Vineyards label as well as Switchback Ridge, Dos Lagos Vineyards, and Engel Family wines.

The winery is a small production facility without visitor facilities, and is not open to the public.

Norman Vineyards was established in 1971 when Art and Lei Norman realized their dream of growing grapes and making wine. Art, a true pioneer, was spurred on by the memories of his father and grandfather making wine in the family home. They spent weekends scouting for the perfect site before settling on their Adelaida site in Paso Robles. Art and Lei fine-tuned their viticultural skills over they years supplying highly sought after grapes to several wineries.

Wines are made in the vineyard, and harvest should take place at the perfect moment – not when dictated by a schedule” is Greg’s approach to his winemaking. In the vineyard, he harvests the grapes at the peak of fruit flavor development. In the winery, he uses boutique winemaking techniques and early bottling to preserve the flavors. His techniques allow him to control the quality, bringing out the grapes’ superior characteristics. The results are excellent Zinfandel, Syrah, Grenache, Cabernet, Viognier, Sauvignon blanc, and Riesling.

Shadow Canyon is a mountain vineyard located on California's Central Coast planted to syrah and grenache. Located in the middle of the East-West corridor known as the Templeton gap, the vineyard lies at a 1,600' elevation approximately 8 miles from the ocean. The corridor allows cool marine air and fog to roll into the vineyard, which experiences daytime highs in the 80's and 90's, with nighttime lows in the 40's. This large diurnal temperature swing promotes a long growing season and balanced fruit development.