Sovolyanska Bistritsa
General data
- Name: Sovolyanska Bistritsa
- Water system: Struma (Strymonas)
- Water type: River
- Progression: Struma (Strymonas) -> Aegean Sea -> Mediterranean Sea -> Atlantic Ocean -> Planet Earth
- Climates: Subtropical
- Continents: Europe
- Countries: Bulgaria
The Sovolyanska Bistritsa is a river in western Bulgaria, a right tributary of the Struma. The river is situated in the southern reaches of the Kraishte geographical region and is 51 km long. It drains the northern slopes of the mountain ranges of Osogovo and Lisets, the southern slopes of the Chudinska planina, the whole Kamenitsa Valley and part of the Kyustendil Valley.
The river takes its source under the name Glavnya in the Osogovo mountain range at an altitude of 2,182 m, some 1.2 km southeast of the highest summit in Osogovo, Ruen (2,251 m). It flows in direction north–northeast until the village of Garlyano in a deep heavily forested valley. The river then bends north–northwest and crosses the eastern reaches of the Kamenitsa Valley. It leaves the valley downstream of the village of Dolno Selo and forms a deep gorge between the mountain ranges of Chudinska planina to the north and Lisets to the south in direction north–northeast. At the village of Mazarachevo the Sovolyanska Bistritsa enters the Kyustendil Valley, where it flows into the Struma, at an altitude of 462 m, some 900 m southeast of the village of Konyavo.
