The Hindu Kush Mountains are on the border.
The Hindu Kush.
The Hindu Kush
The Hindu Kush mountain
The mountain range that covers most of Siberia's border is the Altai mountains. The Altai mountains are the highest mountains in Siberia.
The Rockies
the rockies
The Rocky Mountains
the rockies
The Caucasus Mountains cover most of Armenia.
Landlocked Afghanistan is mostly covered with the rugged peaks of the Hindu Kush mountain range.
Sierra Madre Occidental
This is most likely referring to the HINDU KUSH MOUNTAINS, which run along the border between Afghanistan and Pakistan, but are mostly within Afghanistan.
The Rocky Mountains and the Sierra Nevada Mountains.
The Pindus Mountain Range
Tai Shan is the most famous mountain range.