Howdy ejalfree, Pull up a Wyoming map and look at the areas with mountains . Then do a search for land in the towns close to them.
For instance you will see a lot of mountains along the western border , the Tetons , the Wyoming and the Windrivers. Then as you move east you have the Bighorns, the Black Hills , which in my mind are not big but very nice, and in the south you will see the Laramie, the Medicine Bow, in two groups , and finally the Sierra Madre. There are the Uinta in the south west corner also but they sit on the border so the view is nice but you are not really in the mountains.
Each of these areas may do, it all depends on your desires and cash on hand. Many places in Wyoming are butt ugly when you first see them but after you spend time in those areas they become more beautiful.