Baca produces Zinfandel from Rockpile, a rugged appellation in Sonoma County's North Coast where volcanic soils and elevation shape wines of intensity and structure. The winery's portfolio centers on single-vineyard expressions: Somersault Zinfandel, Dusi Vineyard Double Dutch Zinfandel, and Maffei Vineyard Tug O'War Zinfandel each capture distinct terroir signatures. Wine Enthusiast and Wine Advocate have rated these releases in the low 90s, reflecting the precision and depth characteristic of Rockpile fruit. Zinfandel from this region tends toward dark fruit, mineral backbone, and the kind of tannin architecture that rewards cellaring. Baca's approach emphasizes vineyard identity over a house style, allowing the specific character of each site to emerge.