We recently built a website devoted to getting hunting information out to the public. We have several interactive maps on the website that should help in the planning of your hunt.
We also recently added GIS maps of elk, deer, antelope, moose, sheep, and mountain goats wintering grounds.
Check the elk one out: http://www.montanahunting.org/elk-migration/
We have lots of other stuff that should be helpful in your Montana hunt planning: www.montanahunting.org
If you have suggestions for the site or any comment please let us know as we are always trying to improve it and make it easier to get more people into the Montana wild!