The Chatkal range is the westernmost extension of the Tian Shan — 'Heavenly Mountains' — into Uzbekistan. Geologically it is limestone and metamorphic rock, with substantial silver and lead deposits mined here since at least the 8th century. The Almalyk mining complex south of the mountains is one of Central Asia's oldest continuously-working mines.
The Charvak reservoir was created in 1970 by damming the Chirchiq river as it emerges from the Chatkal range — one of the last major Soviet hydro projects in Uzbekistan. Its 40 km² surface is the country's largest artificial lake and Tashkent's main summer swimming spot.
The Ugam-Chatkal National Park (established 1990, expanded 2018) covers 575,000 hectares of the western Tian Shan — spruce forest, alpine meadow, glacial cirques, and until quite recently the westernmost snow leopard range on Earth. Camera-trap surveys since 2020 suggest 5–10 snow leopards may still be present in the upper Chatkal.