Firozkoh (Pashto, Dari: فیروزکوه), formerly called Chaghcharan (Pashto, Dari: چغچران), and historically known as Ahangaran (Pashto, Dari: آهنگران), is a town and district in central Afghanistan, which serves as the capital of Ghor Province. It is located on the southern side of the Hari River, at an altitude of 2,230 m above sea level. Chaghcharan is linked by a 380 kilometres (240 mi) long highway with Herat to the west (following the south side of Paropamisus Mountains (Selseleh-ye Safīd Kūh)), and a 450 kilometres (280 mi) long highway with Kabul to the east. The town is served by Chaghcharan Airport.
Chaghcharan has a population of roughly 15,000 who are mostly Dari and Pashto speakers. However, data from 2015 showed a population of 31,266. It has 1 district and a total land area of 2,614 hectares. The total number of dwellings in the city is 3,474.