National Geographic : 1973 Jun
Quagmire drowns the trail in the wake of packhorses carry ing people and provisions to a lodge on Berg Lake. A back packer negotiates the muddy morass, the result of horses' hooves and hikers' boots slash ing the turf. Concerned officials plan to build up such sections or reroute the trail around them to protect the fragile environment. Moss campion (below) and other alpine flowers resist wind, cold, and snow, but their small size and the thin soil make them easy prey to a hiker's heel.