Erba Mountainside Vineyards sits in Napa Valley, where the North Coast's maritime influence and volcanic soils shape wines of structure and depth. The winery focuses on Cabernet Sauvignon and Bordeaux-style blends—grapes that thrive in the valley's warm days and cool nights. Its Proprietary Red Wine, a blend of Merlot, Cabernet Franc, and Cabernet Sauvignon, has drawn attention from Wine Advocate, Wine Enthusiast, Wine Spectator, Decanter, and Falstaff. A straight Cabernet Sauvignon rounds out the portfolio. Both wines reflect the precision and aging potential that define serious Napa production.