[3] [4] Today the winery manages two estate vineyards with distinct geologies in the St Helena AVA, separated by the West Napa Fault line.
Grace estate was formed by a discrete volcanic event 5 million years ago, whereas Heath Canyon Ranch (home to the Cornelius Grove and Heath Canyon vineyards) was formed by a combination of volcanic and fluvial activity some 100 million years ago.
[14] Additional problems with oak root fungus in the original acre caused the need to replant the entirety in 1995.
The programs of the Grace Family Vineyards Foundation are primarily in India, Nepal, Mexico, Tibet, and America.
In 2006, a 12-liter Balthazar of 2003 Grace Family Cabernet drew $90,000 ($136,025 in 2023 dollars[16]) in bids at the festival's charity auction.