where is 43' N, 79'W

what city is it in

Check this map.

http://geography.about.com/gi/o.htm?zi=1/XJ&zTi=1&sdn=geography&cdn=education&tm=20&gps=34_543_852_567&f=21&tt=14&bt=1&bts=0&zu=http%3A//www.lib.utexas.edu/maps/united_states/united_states_pol02.jpg

Hint: the city is in Canada.