The Granite Bay, CA map has 2 places to visit. That adds up to 2 wineries. Use the map to see where each one sits.
Mount Saint Joseph Wines Tasting Room
8629 Auburn Folsom Rd, Granite Bay, CA 95746
(916) 784-9463
Twin Rocks Estate Winery
6635 Cavitt Stallman Rd, Granite Bay, CA 95746
(916) 587-0618
trwinery.com