When hiding something in the forest on the surface, there's a great practice called UPS (Unusual Pile of Sticks, the German version is very sweet: Hasengrill). They prevent people from boaring a few acres of land and are great replacement for spoiler photos. However, snow makes them invisible.
How should I build my UPS to make it visible even in winter? Well, for 2-meter thick snow nothing would help, but it's usual, at least in Central Europe, that snow has 10-20 cm.