kinda depends on what your feet are walking on. I assume in MT you have lots of aggressive rock, ice in season, water when it "warms up." When I lived in ID, I wore resolable Danner 8" leather Goretex boots with really aggressive Vibram soles and had to replace the soles about every 18 months (chukar hunting is especially hard on boots. Dogs. Hunters. Everything BUT chukars.).
But in the great flat plains of KS, NB, and SD, I find 8" Irish Setter #854s--mix of leather and tough fabric, mixed lug and bob soles, plus Goretex--perfect. They are light and give good protection, too. They would work fine in MT wheatfields; I've used them in the Palouse WA/ID wheatfields very happily. But I'm going to get them resoled next time with some kind of light, full-lug Vibram sole because CA quail hunting can get you into the rocks pretty fast.
I guess I'd want two sets of boots if I hunted both fields and rock breaks regularly; one "lite and low"; one high and seriously "grippy".
(However, there is no perfect boot for chukar hunting, because chukars were put here by Auld Clooty to torment us for all our other guilty pleasures. The perfect chukar gun does also not exist, unless you know of a shotgun that carries like a fourten and hits like a perfect 10....).
