Kostobe, Archaeological site in Bayzak District, Kazakhstan

Kostobe is a square hillfort measuring 420 by 450 metres on the right bank of the Talas River near Sarykemer village. Its double walls with towers and moats survive to 3–3.5 metres, and four gates led into the town. The citadel, 150 by 150 metres, held a palace of more than 20 rooms built of mud brick and pakhsa, with a central hall of 9.5 by 8.2 metres.

The location was an important hub along a major trade route between China and Central Asia in medieval times. This position made it a meeting point for merchants and different peoples.

The site shows traces of different peoples through found objects like ceramics, coins, and building pieces from various cultures. These items tell the story of people who lived and traded here.

Visitors need advance permission to access the location since ongoing research requires protection of the sensitive excavation areas. Local guides lead visitors along designated routes to prevent damage.

Excavations on the citadel uncovered a fire-worship sanctuary with decorated wall panels whose ornaments resemble those at Varakhsha and Afrasiab, showing ties between Talas region towns and Central Asia.