Garvin Heights Vineyards produces wine from cold climate grapes that we grow on farm located on the bluff above the city of Winona, Minnesota on the Mississippi River. We also purchase grapes from growers in both Minnesota and Wisconsin located in the Upper Mississippi River Valley viticulture area. We ferment the grape varieties separately and where desirable, blend those wines to make the many selections we offer our customers. All fermenation is done in stainless tanks. Selected wine are finished in small oak barrels made in Minnesota from "Minnesota Oak". Where possible we keep those grapes grown in Minnesota separate so that their wines can carry the Minnesota Grown label.