Thousands of visitors are descending on the Calgary area for the G7 leaders' summit from June 15-17 in Kananaskis, Alta.

It all started a few years ago when a University of Calgary geography professor asked himself ... if I could pull out my iPhone, click on Google Maps and up would come a map showing the energy leaving ...

The no-go zone, according to a map released late Thursday, includes the entire length of the Rocky Mountains, stretching as far east as Calgary and Highway 2 in the south. There are large zones ...