Hamilton, the centre of a densely populated and industrialized region, is located in Southern Ontario on the western part of Lake Ontario. Hamilton Harbour marks the northern limit of the city, and the Niagara Escarpment runs through the middle of the city bisecting the city into "upper" and "lower" parts. There are over one hundred waterfalls and cascades within the city, most of which are on or near the Bruce Trail as it winds through the Niagara Escarpment. Two steel manufacturing companies, Stelco and Dofasco, were formed in 1910 and 1912, and Procter & Gamble opened a manufacturing plant in 1914. McMaster University moved from Toronto to Hamilton, an airport was built in 1940, a Studebaker assembly line started in 1948, the Burlington Bay Skyway Bridge was built in 1958, and the first Tim Horton's store opened in 1964. The city experienced a devastating fire at the Plastimet plastics plant in 1997 with about three hundred firefighters battling the blaze on Wellington Street North when tons of PVC Plastic caught on fire. On January 1, 2001, the new City of Hamilton was formed through the amalgamation of the former city and the six municipalities of Stoney Creek, Glanbrook which includes Mount Hope, Ancaster, Dundas, and Flamborough which includes Waterdown. Hamilton is home to the Royal Botanical Gardens, McMaster University and Mohawk College. The Canadian Football League's Hamilton Tiger Cats began playing at the new Tim Hortons Field in 2014, which was built as part of the 2015 Pan American Games which will be jointly hosted by Toronto and Hamilton. We have lived in Hamilton for more than 40 years; it is here that we raised our three children.