Ridge’s history begins in 1885, when Osea Perrone, a doctor and prominent member of San Francisco’s Italian community, bought 180 acres near the top of Monte Bello Ridge in the Santa Cruz Mountains. He planted vineyards and constructed a winery of redwood and native limestone in time to produce the first vintage of Monte Bello in 1892. The historic building now serves as the Ridge production facility and the vineyards produce the Cabernet Sauvignon, Merlot and Petit Verdot that comprise today’s Monte Bello. Though Ridge began as a Cabernet winery, by the mid-60s it had produced several Zinfandels including the Geyserville. In 1972, Lytton Springs joined the line-up and the two came to represent an important part of Ridge production.