How to use "sheltered" in a sentence

It had been committed in a sheltered space within the crowd, hidden by the killer's and the victim's bodies

Entering the formidable mountains, they had become aware of how soon darkness would settle over the sheltered valleys and ravines, and they had discussed the wisdom of proceeding

The chopper hugged the valley floor, streaking northward, ten feet above an ice-blocked river, still forced to make its way through a snowfall that nearly blinded them, but sheltered from the worst of the storm's turbulence by the walls of mammoth evergreens that flanked the river