Gillespie County Texas Gillespie County is one of many counties in Texas which is home to several different AVAs of viticulture. Appellations: Bell Mountain Fredericksburg in the Texas Hill Country Texas Hill Country Vineyards & Wineries: Becker Vineyards Bell Mountain Fredericksburg Winery Grape Creek Vineyards Oberhof Winery Rancho Ponte Vineyard Torre di Pietra