Stefan wrote:

However, the correct answer to your question is: If you have to ask, you
shouldn't do it.

This intent offers the best advise. You need to take a mountain
flying course by a competent instructor or at least take the one
offers online by AOPA. There are many things that can kill you or
cause an accident if you are not properly trained. This should not
discourage you, just be educated before attempting it. Otherwise, you
may add your aircraft to others on the montains here.

Ron Lee