Hindu Kush - Mountains

Mountains

The mountains of the Hindu Kush system diminish in height as they stretch westward: Toward the middle, near Kabul, they extend from 4,500 to 6,000 meters (14,700 feet to 19,100 feet); in the west, they attain heights of 3,500 to 4,000 meters (11,500 feet to 13,000 feet). The average altitude of the Hindu Kush is 4,500 meters (14,700 feet). The Hindu Kush system stretches about 966 kilometres (600 mi) laterally, and its median north-south measurement is about 240 kilometres (150 mi). Only about 600 kilometres (370 mi) of the Hindu Kush system is called the Hindu Kush mountains. The rest of the system consists of numerous smaller mountain ranges including the Koh-e Baba, Salang, Koh-e Paghman, Spin Ghar (also called the eastern Safēd Kōh), Suleiman Range, Siah Koh, Koh-e Khwaja Mohammad and Selseleh-e Band-e Turkestan. The western Safid Koh, the Malmand, Chalap Dalan, Siah Band and Doshakh are commonly referred to as the Paropamise by western scholars, though that name has been slowly falling out of use over the last few decades.

Rivers that flow from the mountain system include the Helmand River, the Hari River and the Kabul River, watersheds for the Sistan Basin.

Numerous high passes ("kotal") transect the mountains, forming a strategically important network for the transit of caravans. The most important mountain pass is the Salang Pass (Kotal-e Salang) (3,878 m); it links Kabul and points south of it to northern Afghanistan. The completion of a tunnel within this pass in 1964 reduced travel time between Kabul and the north to a few hours. Previously access to the north through the Kotal-e Shibar (3,260 m) took three days. The Salang tunnel at 3,363 m and the extensive network of galleries on the approach roads were constructed with Soviet financial and technological assistance and involved drilling 1.7 miles through the heart of the Hindu Kush.

Before the Salang road was constructed, the most famous passes in the Western historical perceptions of Afghanistan were those leading to India. They include the Khyber Pass (1,027 m), in Pakistan, and the Kotal-e Lataband (2,499 m) east of Kabul, which was superseded in 1960 by a road constructed within the Kabul River's most spectacular gorge, the Tang-e Gharu. This remarkable engineering feat reduced travel time between Kabul and the Pakistan border from two days to a few hours.

The roads through the Salang and Tang-e Gharu passes played critical strategic roles during the U.S. invasion of Afghanistan and were used extensively by heavy military vehicles. Consequently, these roads are in very bad repair. Many bombed out bridges have been repaired, but numbers of the larger structures remain broken. Periodic closures due to conflicts in the area seriously effect the economy and well-being of many regions, for these are major routes carrying commercial trade, emergency relief and reconstruction assistance supplies destined for all parts of the country.

There are a number of other important passes in Afghanistan. The Wakhjir Pass (4,923 m), proceeds from the Wakhan Corridor into Xinjiang, China, and into Northern Areas of Pakistan. Passes which join Afghanistan to Chitral, Pakistan, include the Baroghil (3,798 m) and the Kachin (5,639 m), which also cross from the Wakhan. Important passes located farther west are the Shotorgardan (3,720 m), linking Logar and Paktiya provinces; the Bazarak (2,713 m), leading into Mazari Sharif; the Khawak Pass (4,370 m) in the Panjsher Valley, and the Anjuman Pass (3,858 m) at the head of the Panjsher Valley giving entrance to the north. The Hajigak (2,713 m) and Unai (3,350 m) lead into the eastern Hazarajat and Bamyan Valley. The passes of the Paropamisus in the west are relatively low, averaging around 600 meters; the most well-known of these is the Sabzak between the Herat and Badghis provinces, which links the western and northwestern parts of Afghanistan.

These mountainous areas are mostly barren, or at the most sparsely sprinkled with trees and stunted bushes. Very ancient mines producing lapis lazuli are found in Kowkcheh Valley, while gem-grade emeralds are found north of Kabul in the valley of the Panjsher River and some of its tributaries. The famous 'balas rubies', or spinels, were mined until the 19th century in the valley of the Ab-e Panj or Upper Amu Darya River, considered to be the meeting place between the Hindu Kush and the Pamir ranges. These mines now appear to be exhausted.