There is some post processing on that shot....
The light balance between the mountain/sky and the deep canyon was a huge problem. I used a 3 stop hard edge ND grad to hold back the light on the mountain to bring the two parts of the image within the dynamic range of my camera. Without that trick or doing some HDR bracketing I could not have made this one.
You can easily see the line of the ND grad in the foreground trees. The high tech way would have been to shoot for HDR work, but I am not very good at that....so old school film days methods were my choice.'
Thanks for the comments, that is one of my favorite images from Rainier. It can be a real challenge for light.