Aptly named, with views overlooking the Santa Ynez River, there are three distinct Rio Vista Vineyards. The first two to be planted Sta. Rita Hills AVA are both on the east side of Santa Rosa Road: Rio Vista Vineyard North is right against the appellation boundary as it crosses the road and Rio Vista Vineyard South is about a mile further into the appellation. The third Rio Vista Vineyard was planted in 2006 and extends west from Santa Rosa Road, surrounding the Thorne Wine headquarters.