Map of dyatlov pass incident: satellite image and height contours. 
Hikers was sleeping in tent. They suddenly frightened something and went panic.They ran down to forest near cedar. It was freezing cold. Some tried to return to tent and died in cold. Others died near cedar and ravine. Source of raster data is JAXA ASTER DEM image and ESA Sentinel2 image.
Own work, based on NASA, JAXA, ESA satellite data
Merikanto