All that area bounded by a line commencing at the intersection of Greene-Albany county line and the west bank of the Hudson River; thence westerly along the Greene county line to Route 9W; thence southerly along Route 9W to the Governor Thomas E. Dewey Thruway; thence southerly along the Governor Thomas E. Dewey Thruway to Kaaterskill Creek; thence easterly along Kaaterskill Creek to Catskill Creek; thence easterly along Catskill Creek to the west bank of the Hudson River; thence northerly along the Hudson River bank to the beginning point.