Italy
You would find more mountains to the west of Montana due to the presence of the Rocky Mountains. Montana's western border is defined by the Rocky Mountains, which extend into neighboring states like Idaho and Wyoming.
The Ural Mountains are located in Russia, running approximately north to south through the western part of the country. They serve as a natural border between Europe and Asia.
You would find more mountains in the western part of the United States, including major ranges like the Rockies, Sierra Nevada, and Cascade Range. The eastern part has some smaller mountain ranges like the Appalachian Mountains.
You would find more mountains in the western part of Montana, particularly in the Rocky Mountains region. The eastern part of Montana is generally characterized by flatter terrain and rolling hills.
Western Colorado, eastern Colorado is plains/grassland.
Russia
Bulgaria
The Apennine Mountains, the Alps, the Carpathian mountains, the Scottish Highlands, the Inner and Outer Hebrides, Glenveagh National Park in Ireland and in North America.
Generally in the center of the country; see the link bellow.
You will find the mountain range Apennine.
Russia
The Rocky Mountains are in the western part of the state.
The Scandinavian mountains, also known as the Scandes.
The small Asian country that is home to eight of the ten highest mountain peaks in the world is Nepal.
Iran
The Rocky Mountains are found in the west of the United States and Canada.
Svalbard is almost entirely mountains and glacier-carved valleys.