On Friday CBC Radio's Q with Jian Ghomeshi announced that Rush's Closer to the Heart had won their contest to determine the official Canadian 70s rock anthem:

... Inspired by the passionate fight going on in Massachusetts right now over which song will become its official state rock song. We decided to launch our own Q contest to find Canada's official 70s rock anthem and you sent us a deluge of nominations. The Q team powered through the flood of entries and after some passionate deliberations a winner was chosen... RUSH. "Closer to the Heart". ...

Thanks to Paul at The Canadian Music Scene for the heads up.