Volcanism and tectonic activity define Chalone and Pinnacles National Park, immediately below which lies the exceptionally situated Boer Vineyard. First planted by Phil Woodward to Cabernet in 1969, and celebrated as the A Frame vineyard , the vines on these steep slopes were grafted over several decades ago to several selections of Pinot Noir now owned and farmed by Richard Boer. Chalk from an ancient uplifted seabed and decomposing granite here comprise a highly unusual and highly prized terroir.