They are called the Rocky Mountains
western
The Rocky Mountains are in the western part of Montana. The eastern part of Montana is plains.
Western Montana.
Rocky Mountains
montaña is the Spanish word for mountain. mountains are common in western Montana, thus the name.Montana's very name is derived from the Spanish word montaña, meaning mountain country.
Western part of Montana.
Western MT
Western
Western Montana is all mountains. There are relatively no mountains in the east. The western border of Montana is made from the curvature of a mountain range. There are many National forests here.
That would be western Montana.
western part
The western part of Montana has more mountains than the eastern part.