Delicious. North of G7 site is the centre of Canada's aluminium refining. This is due to the availabilty of needed cheap hydroelectricity. This linked story details the how and why of the WW2 dam and the RCAF base Bagotville where Air Force 1 landed. So much for not knowing that Canada has and does secure aluminium for the US forces.
Exquisite.
Don't let the door hit you on the way out.