Muddy Arch produces Roussanne from Sonoma Valley, the southernmost appellation of Sonoma County in California's North Coast. The winery's focus on this white Rhône variety is evident across its vineyard-designated releases: the Haug Vineyard and David Girard Vineyard bottlings both achieve 91-point ratings from Wine Enthusiast, while the Landa Vineyard expression reaches 88 points. Roussanne, a grape prized for its textural complexity and subtle stone-fruit character, finds particular expression in Sonoma Valley's warm days and cooling marine influence. The winery's vineyard-specific approach suggests a commitment to terroir distinction within the region.