Karakum Canal in the context of "Karakum Desert"

Ashgabat is the capital and largest city of Turkmenistan. It lies between the Karakum Desert and the Kopetdag mountain range in Central Asia, approximately 50 km (30 mi) away from the Iran-Turkmenistan border. The city has a population of 1,030,063 (2022 census).

The city was founded in 1881 on the basis of an Ahal Teke tribal village, and made the capital of the Turkmen Soviet Socialist Republic in 1924 when it was known as Poltoratsk. Much of the city was destroyed by the 1948 Ashgabat earthquake, but has since been extensively rebuilt under the rule of Saparmurat Niyazov's "White City" urban renewal project, resulting in monumental projects sheathed in costly white marble. The Soviet-era Karakum Canal runs through the city, carrying waters from the Amu Darya from east to west.

The Marghab River (Dari/Pashto: مرغاب, Murghāb, Balochi: مرگاپ), anciently the Margiana (Ancient Greek: Μαργιανή, Margianḗ), is an 850-kilometre (530 mi) long river in Central Asia. It rises in the Paropamisus Mountains (Selseleh-ye Safīd Kūh) in Ghor Province, flows through the Marghab District in central Afghanistan, then runs northwest towards the Bala Murghab. Reaching the oasis of Mary in the Karakum Desert of Turkmenistan, the Marghab debouches into the Karakum Canal, a diversion of water from the Amu Darya. The catchment area of the Marghab is estimated at 46,880 square kilometres (18,100 sq mi).