Similar maps work for the us. East and west coasts are dense, so too the boarder with canada (the great lakes cities). Every developed country has population centers around ports. There just arent any ports in the north. (That may one day change.)
There is actually a little known port called Hudson Bay Port in the town of Churchill Manitoba. The town has an airport and a rail line, though unfortunately the rail line has fallen into disrepair in recent years, as the private company that owns it has chosen not to maintain it. I'm not sure on the current status, but I recall it being big news because it's lack of running cut off services to many northern communities, as well as rail service in general.