Jennifer & Herb Lamb developed a 7 acre hillside vineyard at the base of Howell Mountain in 1987, and planted it to Cabernet Sauvignon in 1988. The fruit from their vineyard became widely sought after for premium wine, leading them to start their own brand in 1997 with only 50 cases of wine, the HL Vineyards Cabernet Sauvignon. The vineyard has been completely re-planted and is now the sole source of the growing HL Vineyards wines. There are also two "Companion Labels", Two Old Dogs Cabernet Sauvignon grapes from the estate vineyard and Two Old Dogs Sauvignon Blanc from Yountville.