Founded in 1994, Castle Rock Winery has maintained its focus on producing high quality wines at affordable prices. Instead of owning their own Castle Rock vineyards they choose to source grapes from around 40 different experienced grape growers to produce their line of Castle Rock wines. Our Castle Rock reviews indicate that all the grapes utilized to produce these wines derive from vineyards located in California (Napa Valley, Sonoma County, Mendocino County, Monterey County, Alexander Valley), Oregon (Willamette Valley), and Washington (Columbia Valley). Winemaker August ?Joe? Briggs then works with vineyard owners to produce wines that meet with each specific appellation requirements. The wines are then made and bottled at wineries located throughout Napa Valley, Sonoma County, Oregon's Willamette Valley, and Washington's Columbia Valley. Our Castle Rock ratings illustrate the consistent value and quality that their portfolio of wines has to offer.