Snow changed everything. Familiar paths vanished beneath white covering. Landmarks disappeared. What had been easy summer walking became exhausting struggle. Each step sank through surface, requiring extraction before next step, burning energy at rates that could exhaust traveler within hours. Water that flowed freely in summer froze solid or became deadly trap of thin ice over current. Animals that provided summer food sources hibernated or migrated. The landscape became simultaneously more uniform (everything white) and more treacherous (hazards hidden beneath snow).
Yet people moved through winter landscape successfully—traveling between settlements, hunting, tending distant resources, maintaining trade routes. They moved because they developed techniques that made movement possible, because they possessed equipment designed for snow conditions, because they learned to read winter landscape as skillfully as they read summer terrain. Snow travel was not impossible but it was absolutely demanding, requiring specific skills, appropriate gear, physical conditioning, and constant vigilance against hazards that could kill the careless or unlucky.
The person who mastered snow travel gained access to winter landscape that remained closed to the incompetent. They could hunt when others starved. They could maintain contact with distant communities when others remained isolated. They could travel to resources others could not reach. This capability was survival advantage and economic opportunity simultaneously, making snow travel skills valuable and worth the effort required to develop them.