Rocky mountains, USA
This chain of mountains forms an almost unbroken line from Alaska down almost the entire length of West America the Canadian Rockies (listed separately) is the most northern area of this range. Predators in this range include grizzly bears, elk, mule deer, mountain caribou, grey wolves, lynx, and wolverines. Indeed, this range has provided a corridor for returning species such as wolves, and the last refuge for animals like grizzly bears.
Wyoming has a very backwards hunting policy, whereby all wolves within Yellowstone are protected, but as soon as they step outside the boundary they are fair game. 200 to 400 of them live outside the reserve, and if these wolves are lost it could threaten the entire population.