Grizzlies West features steep cliffs and difficult mountain passes. The area is bordered by Big Valley further to the west and the neighbor Grizzlies East to the east. The southern border is defined by Dakota River passing through the region. Inaccessible mountain ranges border the rest of the north.
The area is largely covered by snow to the north and abundant woodland near the riverside. As such, the area is severely isolated and dangerous evident to the lack of settlements and towns in the area. The region consists of mountain ridges, snow-capped valleys, and treacherous cliffs. Its climate is colder than any other region in the game, with mostly sub-zero temperatures, and so it is advisable to wear extremely warm clothing when entering the region. Very little wildlife inhabits the land, as not many species can survive the harsh temperatures and weather conditions.
Notable landmarks and places within the area are Mount Hagen, one of the highest accessible mountains, Lake Isabella a large lake in the west of the region, and Colter, an old abandoned mining town near Spider Gorge. Aside from the lake, there are patches of frozen ponds and small lakes hidden within the region. An active creek is present despite the cold temperature far north; its main sources are the mountain glaciers of the Grizzlies.
Grizzlies West is an obvious play on the real-life Rockies that exist in the Western United States.
Grizzlies West appears to be an amalgamation of various glaciated areas in the Rockies, including the Grand Tetons of northwestern Wyoming, the Beartooth Range of southern Montana, and the Elk Mountains of western Colorado.
The Rocky Mountains themselves are mentioned in-game as well.