The Topolnitsa ( bg, Тополница ) is a river in southern

Bulgaria Bulgaria (; bg, България, Bǎlgariya), officially the Republic of Bulgaria,, ) is a country in Southeast Europe. It is situated on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Macedon ...

, an important left tributary of the

Maritsa Maritsa or Maritza ( bg, Марица ), also known as Meriç ( tr, Meriç ) and Evros ( ell, Έβρος ), is a river that runs through the Balkans in Southeast Europe. With a length of ,Sredna Gora Sredna Gora ( bg, Средна гора ) is a mountain range in central Bulgaria, situated south of and parallel to the Balkan Mountains and extending from the Iskar to the west and the elbow of Tundzha north of Yambol to the east. Sredna Gora i ...

close to

Koprivshtitsa Koprivshtitsa ( bg, Копривщица, pronounced , from the Bulgarian word , ''kopriva'', meaning "nettle") is a historic town in the Koprivshtitsa Municipality in Sofia Province, central Bulgaria, lying on the Topolnitsa River among the S ...

; it is known as the Shirineyska in its upper course. Its average discharge is 55 m³/s and it is long; its

drainage basin A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, t ...

covers . The Topolnitsa flows into the Maritsa near

Pazardzhik Pazardzhik ( bg, Пазарджик ) is a city situated along the banks of the Maritsa river, southern Bulgaria. It is the capital of Pazardzhik Province and centre for the homonymous Pazardzhik Municipality. The Tatars founded Pazardzhik in t ...

after making a large turn under

Trakiya motorway The Trakia motorway (, ) or Thrace motorway, designated A1, is a motorway in Bulgaria. It connects the capital city of Sofia, the city of Plovdiv and the city of Burgas on the Black Sea coast. The motorway is named after the historical region of ...

. The Topolnitsa Reservoir has a maximum volume of and serves the area around Pazardzhik. Among the Topolnitsa's tributaries are the Mativir and the Bunovo River. The river's name is derived from the Bulgarian word топола, ''topola'' (" poplar").

References

* Rivers of Bulgaria Landforms of Sofia Province Landforms of Pazardzhik Province {{Bulgaria-river-stub