The Preemption Line (also spelled Pre-Emption) divided the aboriginal lands of western New York State awarded to New York from those awarded to the Commonwealth of Massachusetts by the Treaty of Hartford of 1786.[1] It was defined as the meridian (north–south) line from the eighty-second milestone of the Pennsylvania–New York survey line at 76° 57' 58" W northward to Lake Ontario.
- ^ Aldrich, Lewis Cass (1893). George S. Conover (ed.). History of Ontario County, New York. Syracuse, NY: D. Mason & Co. pp. 89–96. At Google Books.