What was the first mountain snowmobile?

The first mountain snowmobile is widely considered to be the Arctic Cat Puma, introduced in 1971. Designed specifically for deep snow conditions, it featured a longer track and a more powerful engine compared to traditional trail snowmobiles. This innovation paved the way for the development of modern mountain snowmobiles, which prioritize performance in steep and challenging terrains. The Puma's design set the standard for future models aimed at mountain riding.