The City of Hamilton is located in Southern Ontario on the western end of the Niagara Peninsula and wraps around the westernmost part of Lake Ontario; most of the city, including the downtown section, is on the south shore. Hamilton is situated in the geographic centre of the Golden Horseshoe and is roughly the midway point between Toronto and Buffalo, New York. Its major physical features are Hamilton Harbour, marking the northern limit of the city, and the Niagara Escarpment running through the middle of the city across its entire breadth, bisecting the city into 'upper' and 'lower' parts.