Amazing Snow Art Gives Me An Idea For The First Idaho Snowfall

You know that feeling you get when you take the kids out to play in the snow and you all end up making snow angels? That feeling is about to be decimated since your snow angel is amateur compared to this.

We all need to step up our game (pun intended) and get to carefully walking when the first snow hits Idaho. Imagine the cool art you could make just by walking! I don't understand the intricacies of it though. How does he do it so perfectly when he can't see the entire canvas he's using? Is he using a drone or GPS to monitor his lines and tell him where to step? Maybe I should just stick to mediocre snow angels.