How do you describe footprints in the snow?

If you've never seen footprints in the snow, you need to study some photographs or go somewhere and make some prints of your own. Snow usually has a hard crust on the top that you crunch through, and then it's very soft so the footprint spreads out underneath that. You generally see a vaguely foot-shaped hole if the snow is deep. If the snow is very hard or very shallow, you can see a more foot-shaped print.