Those parts of Allegany and Steuben Counties lying within a continuous line beginning at the intersection of Allegany County Route 2 and Route 17 (Southern Tier Expressway) at Almond; thence easterly along Allegany County Route 2 to Route 21; thence southerly along Route 21 to Route 417 at Andover; thence easterly along Route 417 to Allegany County Route 22 (Independence Road); thence southerly along Allegany County Route 22 to Route 248; thence southeasterly and easterly along Route 248 to Allegany County Route 19 (Spring Mills Road) near Whitesville; thence southerly along Allegany County Route 19 to the New York-Pennsylvania boundary; thence easterly along the New York-Pennsylvania boundary to Route 15 (south of Lindley); thence northerly along Route 15 to Route 417; thence westerly along Route 417 to Route 36 near Jasper; thence northwesterly along Route 36 to Route 17 (Southern Tier Expressway) near Arkport; thence southwesterly along Route 17 to the point of beginning.