David Grieve convinced Vance Rose that the Lovall Valley vineyard was exceptional and from that collaboration we now have the Grieve Family Winery. Lovall Valley occupies a unique position geographically, climatically, viticulturally and historically. Located between the towns of Napa and Sonoma straddling the county line just north of Carneros, Lovall Valley is only 1.25 miles long and less than a half-mile wide and is the last pocket before the Mayacamas Mountains give way to Carneros and the San Pablo Bay to the south. Accessible only from Sonoma, yet located in Napa County, Lovall Valley sits at approximately 650 feet above sea level and is bordered on the west by Arrowhead Mountain. Huichica Creek runs the length of the valley bisecting the Grieve Family Vineyard, supplying it with moisture and extending the growing season.