Snow is a great sound insulation . If you're in a village or a place with not much people but still sounds (a car far away, animals, river etc..) it suddenly feel very quiet and calm, almost too much. Like if the time was frozen.
Untouched snow is beautifull and it screeches was you walk on it but once it start to melt when many people walked on it, it become dirty and muddy.
It's very light and fragile but when the snow become a bit old, it start to be very heavy and compact.
(please feel free to correct my english, I'm working on it)