Ecoregions consist of many ecosystems, sharing similar plants, animals, climate and terrain. These regions of Montana are filled with many coniferous trees, and the occasional deciduous hardwood. The terrain is mountainous, with broad valley bottoms. Montana's Montana Forests include whitetail deer, moose, wolverines, ptarmigans, bighorn sheep, bobcats, mountain lions, lynx, grizzly bear, black bear, and many bird species. These regions feature plains and rolling hills carved by glacial till centuries ago.
Steep slopes can border some of the rivers, and vegetation is dominated by native prairie grasses.
Wildlife found here can include grouse, mule deer, pronghorn antelopes, jackrabitts, foxes, coyotes and others. This was also the natural habitat of most bison. As you might guess, these plains weren't formed by glacial till. A panel of wildlife experts from state and federal organizations selected all sites. These sites point wildlife watchers to everything from large game habitats to meadows filled with butterflies.