Gaming

I assume they don't wait until there's 60 feet to start plowing

Sometime in early March, a bulldozer specially equipped with both a GPS and a mobile satellite phone is sent up the mountain and over the Snow Canyon. The GPS and sat phone work in tandem to provide the driver a detailed video screen image of the dozer’s location in relation to the center of the snow-buried highway. This driver’s job is not to clear snow, but simply to lay out an accurate track of the road itself. Following the GPS dozer is a team of dozers that will begin the clearing operations.

That doesn't all fall at once haha. They continually plow after every snow fall and add to the existing piles. How they manage to keep stacking and carving it so perfectly and so high is a mystery to me, but I'm sure the snow is only this high in this particular area. It's likely an attraction or something