Sample handcrafted wines made with grapes from the beautiful vineyards of San Diego County at Ramona Ranch Vineyard and Winery located in the heart of the Ramona Valley American Viticulture Area (AVA). Taste award winning reds, a dry rose and interesting whites in our quaint tasting room or on our lovely view tasting terrace, often along with artisan cheese samples. Family owners/wine-makers Micole Moore and Teri Kerns focus on vineyard specific, single varietal wines like their Double-Gold Estate Tannat, Paccielo Reserve Sangiovese and smooth drinking Cadillac Cab. White wines include a dry Muscat, Viognier and a newly released Dessert wine called “Indulgence,” made from 100% Sauvignon Blanc.

Ray Schnorr and Jeannine O'Brien, owners, farmers, and winemakers, began their journey with a simple landscaping idea—planting 10 Zinfandel vines alongside their home in Rancho Bernardo. They sourced the plants from Sonoma County, stored them in a hotel during a trade show in San Francisco, and planted them in the spring of 2004. A year later, as the vines thrived, the question arose: “What are you going to do with those grapes?” What started as a casual interest in wine evolved into a full-blown passion for winemaking. After acquiring the necessary equipment, building refrigerated storage, and eventually purchasing land for a vineyard, their amateur label, "Slippery Slope," was born.

During this time, Ray immersed himself in winemaking, taking classes at a local community college and online courses from UC Davis. He became active in the local home winemaking community, earning recognition and accolades in county and state winemaking competitions. Jeannine, too, became a winemaker, producing a gold medal-winning vintage. More recently, she passed the rigorous exam to become a Level 1 Sommelier in the Court of Masters.

In 2007, they acquired their property in Highland Valley and began construction on their winery and vineyard in 2009. Acknowledging the region’s rich history of grape growing, which spans over a century, they named their estate Highland Valley Vineyards and designed the winery in a 1920s craftsman style.

Their approach blends traditional winemaking techniques with modern technologies to craft wines of distinction and character. They specialize in producing bold red wines with full body, balanced fruit, and a rich finish. To complement their estate-grown grapes, they source fruit from San Diego (South Coast), Mexico, Paso Robles (Central Coast), Amador County (Sierra Foothills), Lodi, and Dry Creek Valley (Sonoma County).

As winemakers and farmers, Ray and Jeannine now oversee the full journey from earth to bottle, practicing sustainable farming to enhance fruit quality while minimizing environmental impact.

Abundant, beautiful, and joyful, the vineyard expresses an idea that the best things in life are simple and honest. If there is truth in wine, it comes from the plain transition of fruit and soil and sun into a blend of art and fate. Granite Lion Cellars begins with the best vine stock and cherishes the distinctive characteristics that make every variety unique because we understand that all we take through life is ourselves. A young winery, Granite Lion Vineyards presents a rich and distinctive taste intrinsic to the passion of youth.