The Gologan is a left

tributary A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they ...

of the river Geru in

Romania Romania is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern and Southeast Europe. It borders Ukraine to the north and east, Hungary to the west, Serbia to the southwest, Bulgaria to the south, Moldova to ...

. It flows into the Geru in

Costache Negri Costache Negri (May 14, 1812 – September 28, 1876) was a Moldavian, later Romanian writer, politician, and revolutionary. Born in Iași, he was the son of ''vistiernic'' (treasurer) Petrache Negre. The scion of a Boyars of Moldavia and Wallac ...

.Gologan / Bujoresti (jud. Galati)
e-calauza.ro Its length is and its basin size is .

References

Rivers of Romania Rivers of Galați County {{Galați-river-stub