warning sign red triangle falling rocks on icy snow covered winding mountain road passing through foggy and mist filled valley

alert avalanche boulders canton caution cloudy cold danger dangerous deep europe fall falling fog foggy hazard hilltop ice icy isolated landscape landslide mist mountain mountains nature nobody outdoor outdoors pass peak people range red remote risk river road rock rockfall rocks safety scenery sign slip snow snowcapped stone symbol travel triangle warning white winding winnats winter