There are numerous cable-ways in those mountains, it would be nice to have a specific trail and geolocation for where this might have been taken, I've used Google Earth to try and locate it but minimal success given the terrain, the other side of the valley seems to have a serious ski resort, but I can't tie it in Google Earth.
My thinking is that this could be the top of a cable car shuttle on a cable and the camera somehow snapped it and only caught a segment that was saved sequentially. We often forget that these digital cameras are not like film and the images are often stitched from multiple segments. I don't know where the rest of the car would be, if this was a viable explanation then one of the other segments would have to have had something of the car too.
Knowing the location of the photo would help exclude this as an explanation, as otherwise a genuine UFO would seem to have to be invoked as likely.