Quote Originally Posted by Lee Shively View Post
"People from other parts of the country have no concept of how deep blue the Western sky can be."

That is very true. I have many slides in which a polarizer and Fuji Velvia film produced an ink-black sky. It can be an effective technique but it can also be a bit of a surprise when you don't realize it's happening.
A little polarizer action does not hurt, either.