Hey KOm4, which area of Northern Ontario do you make it to?
One other point for Crown Land, especially if you're in Northern Ontario, is to have an emergency plan in place, including someone who knows where you are and when you're coming back. Where we go camping, there is NO cell service at all. If something happens, you're on your own until your emergency contact misses you. If you don't have one, you're just plain on your own.
I've had the pleasure of spending 10 years working in some incredibly remote areas of Northern Ontario. It wasn't until my last stint a few years ago that the companies considered satellite phones and Spot GPS units to ensure our safety. I'm just lucky nothing happened during the other 7 years out there.