So this weekend I was driving home from snowmobiling up north and there was a guy riding on a trail by the highway on a snowmobile with a real narrow track and only one ski... I was wondering what that is called and who makes them?
What you're talking about is a A.D. Boivin Snow Hawk. They basically look like a motocross bike with a single ski and a narrow track. There is a link to the site below.