The Niagara Escarpment AVA is an American Viticultural Area in Niagara County, New York along the Niagara Escarpment. Certified by the United States Department of the Treasury's Alcohol and Tobacco Tax and Trade Bureau on October 11, 2005, it covers an area of 18,000 acres (7,284 ha).This wine region is less developed with more open spaces than the 70 or so Niagara Peninsula wineries on the Canadian side of the Niagara River, but shares the same terroir.