Porter Creek Vineyards began its journey in 1978 when founder George R. Davis acquired the estate, which included young Pinot Noir vines, some of which continue to produce today at 45 years old. Davis initially focused on enhancing the existing vineyards before planting the remaining available acreage. By 1982, he had successfully secured one of the property's old barns for wine production, marking a pivotal moment for Pinot Noir in the Russian River Valley.

In 1983, the Russian River Valley was officially designated as an American Viticultural Area (AVA), a period when only a few were investing in Pinot Noir. Despite the prevailing skepticism about Pinot Noir’s potential in the region, with his banker and farm advisor urging him to plant more Chardonnay instead, Davis remained committed to his vision.

Primarily a self-taught winemaker, George Davis was a voracious reader, immersing himself in literature on winemaking techniques and Burgundian winegrower philosophies. He engaged in numerous discussions with local winemakers and rented part of his winery to others, gaining invaluable insights and experience from these interactions.