The actual winery is located up valley in the rural town of Glen Ellen, producing single-vineyard, small batch wines from estate vineyards and grapes purchased in Napa and Sonoma.  Mayo produces a fairly large selection of wines, including Chardonnay, Sparkling Wines, Gewurztraminer, Sauvignon Blanc, Dessert Wines, Cabernet Franc, Cabernet Sauvignon, Barbera, Malbec, a Meritage Blend, Merlot, Pinot Noir, Petite Sirah, Syrah and Zinfandel.

Charles Creek
483 First Street West
Sonoma, CA   707-935-3848
Open Daily, 11:00 to 6:00
The tasting room, located on the Plaza in Sonoma is very whimsical and inviting with its old carved wooden bar and the full-sized cow sculpture made completely out of corks from Sonoma County wine bottles, there is always something to look at.  Along with the wonderful wines of Charles Creek, and Ms Moo-lot, take a few minutes to enjoy the local art on exhibit in the shop.  The ones that were there the day we visited were quite exceptional and worth stopping in to see. 

The estate vineyards are on Mount Sonoma at the 1000 ft elevation where the winery gets some of its Merlot grapes.  They also purchase Merlot, Cabernet Sauvignon and Chardonnay from wineries throughout Carneros, Napa Valley, Russian River and Sonoma Valley to make their vineyard designate wines.  The winery also produces a Red Wine Blend, Grenache, Syrah, Muscat Canelli and desert wines.  Tasting is complimentary.

Castle Vineyard & Winery
122 West Spain Street
Sonoma, CA   95476  707-996-1966 X106
Open Daily, 11:00 to 5:00
The tasting room for Castle Vineyard  Winery is located just off the Plaza in downtown Sonoma in an older, cottage style home with a sizeable porch and surrounded by gardens. When the weather cooperates tastings are done on the patio in a French Bistro style.  The wines are produced at a winery facility located between Sonoma and Los Carneros with plans for a full tasting facilities at the estate in Carneros in the future. The winery has built a reputation for award winning Pinot Noir, but has received acclaim for its vineyard designated Viognier, Syrah, Merlot and Zinfandel as well.  There is a $5 fee for tasting which is happily refunded if you purchase a bottle of wine. 

Westwood Winery
East Napa St. #3
Sonoma, CA  707-935-3246
Call for an Appointment
The tasting room is located on the Plaza in Sonoma and unlike the others there, does require an appointment to taste.  The winery specializes in powerful, well structured Pinot Noirs sourced from the Los Carneros, Sonoma Valley and Napa Valley.  They also produce a big, brooding Syrah and a Rhone Blend Rose, both from Sonoma.  Continued ...