Tell me this..?

I am Uday my wallpaper from webshots “Snake River,Grand Teton National Park,Wyoming” from sampler topic .Is this image is artificially generated or it is natural ones ? tell me. If this photo is
natural ones please tell me how they will convert that photo into desktop wallpaper tell me the procedure.
means that wallpaper is artificially generated or it is the photo taken in that national park and scaned into computer to make wallpaper

Snake River, image,
http://www.ljplus.ru/img2/r/u/rusak_hong_kong/Snake-River_-Grand-Teton-National-Park_-Wyoming.jpg

so, “my wallpaper ” you are using image already as your wallpaper, and who’s they?
to use any image from viewing, right click on image and select;
set as desktop background…
..