Tamarack produces Bordeaux-style blends from Columbia Valley's premier vineyard sites. The winery draws on three distinguished sources: Seven Hills Vineyard, Du Brul Vineyard, and Sagemoor Vineyard, each contributing distinctive terroir to reserve bottlings built on Cabernet Sauvignon, Cabernet Franc, and Merlot. The Seven Hills Vineyard Reserve, a blend of these three varieties, represents the winery's flagship expression. Du Brul and Sagemoor reserves follow similar varietal frameworks, reflecting the region's capacity for structured, age-worthy reds. Columbia Valley's warm days and cool nights create ideal conditions for ripening Bordeaux varieties, and Tamarack's vineyard selections emphasize this balance. The wines have received recognition from Wine Enthusiast, Wine Advocate, Wine Spectator, and Decanter.