As a winemaker, Paul is highly regarded for his ability to identify exceptional vineyards, and for his pioneering spirit in working innovatively with new and historical sites and regions. His success has inspired a wealth of nicknames among the press, from quiet trendsetter to prospector to truffle-hunting dog. Initially hired by Robert Mondavi for his advanced understanding of oak aging, he was soon promoted to the inaugural Opus One winemaking team. Following his Mondavi experience, Paul joined Simi Winery as Winemaker before going on to consult for Peter Michael, Fisher Vineyards, Lewis Cellars, Bodegas Catena and others. Having founded Paul Hobbs Winery in 1991 and Vina Cobos in 1999, he continues to be a leading consultant winemaker around the globe.

Napa County is a county located north of San Pablo Bay in the northern portion of the U.S. state of California. As of the 2010 census, the population was 136,484.The county seat is the City of Napa. Napa County was one of the original counties of California, created in 1850 at the time of statehood. Parts of the county's territory were given to Lake County in 1861.Napa County comprises the Napa, CA Metropolitan Statistical Area, which is also included in the San Jose-San Francisco-Oakland, CA Combined Statistical Area. It is one of four North Bay counties Napa County, once the producer of many different crops, is known today for its regional wine industry, rising to the first rank of wine regions with France by local wineries Stag's Leap Wine Cellars and Chateau Montelena winning the "Judgment of Paris" in 1976.