It's the geographic center of Canada, that's the coordinate that the geo-ip database gives us back when no specific city is available. Works well for smaller countries, but in Canada it's quite visibly "off" :)
I have this gripe with mapping in general - area of uncertainty doesn't seem to be plumbed well. The assumption that everything is a point seems to permeate everything.
I do know that Alice Springs exists, but it's an error in the Geo IP database they are using rather than true data. That's where the general hand-waving "australia" marker is placed when they don't know more than the country of allocation. There's a huge disparity between the number of people that live in NT and in other states, so the large number of results "coming from" there is telling in itself.