Louis M. Martini produces wines from St. Helena, a region celebrated for structured Cabernet Sauvignon and bold reds. The winery's portfolio centers on two signature expressions: Lot No. 1 Cabernet Sauvignon and California Mountain Zinfandel, both of which have earned recognition from major critics including Decanter, Wine Advocate, Wine Spectator, Wine Enthusiast, and Falstaff. The Lot No. 1 Cabernet Sauvignon represents the winery's work with the region's flagship varietal, while the California Mountain Zinfandel showcases the grape's ripe, structured character. A third offering, Cypress Ranch Vineyard Cabernet Sauvignon, rounds out a lineup rooted in Napa Valley's classic red varieties. These wines reflect the terroir and vineyard selection that define St. Helena's winemaking tradition.