So when I edit something like this, I try and break it up into different sections, and then edit them independently.
SO I would use layers, and I would create one for the mountain itself, and the rock foreground. Sometimes I do the same for the sky, but in this case the sky looked a good shade of blue.
The whole key to this stuff is the masking, or the isolation of the parts that you wish to edit. ESPECIALLY when you have trees/plants involved. Masking that tree line off to edit the sky (leaving the tree be), would be a PIA.
So I use a program by Topaz called Remask 2 (
Topaz ReMask - Masking Made Easy). It makes masking as easy as possible and saves time.
I opened the photo in PS Elements, then made two copies.The top copy was opened in remask to remove the mountain from everything else. Then the middle layer was used to isolate the rocks, and the bottom stayed whole.
I then just used the levels tool to increase the contrast and white balance a bit... nothing big, just enough to lose some of the dullness. I did a little contrast tweak to the rocks, and then flattened the image.
Took less then 10mins....