Contains modified Copernicus Sentinel data 2025
Kostena reka is a village in Shumen Municipality, in Shumen Province, Bulgaria. Kostena reka lies at 217 m above sea level, 11.1 km from the Predbalkan mountains. It has 23 inhabitants (2025). The nearest city is Shumen, 20 km to the northwest. Among the landmarks around are Madara Rider (10.9 km), Tombul Mosque (21 km) and Shumen Fortress (22 km).