The AVA, which is wholly within Oregon's Willamette Valley AVA, consists of a natural geological formation; a distinct ridge approximately three and one-half miles long and one and three-quarters miles across, covering approximately 5.25 square miles and 3,350 acres. It is estimated that between 1,000 and 1,400 acres in the proposed "Ribbon Ridge" viticultural area are suited to premium winegrape planting. Fourteen vineyards and five wineries are currently located on Ribbon Ridge, with around 400 acres currently planted. Four additional vineyards and three additional wineries are currently in the planning stage and should be developed within the next three years. Vineyard or winery operations now own in excess of 700 total acres on Ribbon Ridge.