To my knowledge you cannot own national park land in Canada. I should have said "minimal environmental impact", but yes it's probably something you should look

To my knowledge you cannot own national park land in Canada. I should have said "minimal environmental impact", but yes it's probably something you should look into to make sure you aren't close to water courses or disturbing some kind of nesting area. By and large though, building a small cabin with no services in the woods is going to by definition have minimal environmental footprint if you follow common sense and do a little research.