Well I am sure they are out all year in the zoo
In the wild they are virtually impossible to find in the summer. Suprisingly Snow Leopards don't actually like snow

so in the winter they are down in the valleys making it slightly easier to locate. Alot of the photos you see on Google don't quite give you that 'in the wild' feeling but your photos could easily be mistaken for being in the wild. There was recently a documentary on them, if you want you can have a little peek at it, but the whole movie isn't up on the internet. I can't say I have found any great information on snow leopards on the internet, they have the basics but I was given a talk by one of the film crew who helped produce the video below and that really gave you an ide aon how rare and species these animals are.
This video gives you an idea of both the terrain and how beautiful these animals are.
http://www.youtube.com/watch?v=VbR3cUnCdJk&feature=related"
Here is a photo I took a bit earlier, I am having so much trouble with my focus, I keep getting it slightly wrong, the flowers themselves may not look spectacular but I wanted a simple shot of the flower and the rain drops.
http://img444.imageshack.us/img444/1827/flower10in4.jpg