What is Vrbanja (river)?
{{Infobox river | name = Vrbanja<br>Врбањa | image = Vrbanja_z.JPG | image_size = | image_caption = The Vrbanja in [[Čelinac]] in wintertime | source1_location = [[Vlašić (mountain)|Vlašić]] | mouth_location = [[Vrbas (river)|Vrbas]] | mouth_coordinates = {{coord|44|46|44|N|17|13|12|E|display=it|region:BA_type:river}} | progression = [[Vrbas (river)|Vrbas]]→ [[Sava]]→ [[Danube]]→ [[Black Sea]] | subdivision_type1 = Country | subdivision_name1 = [[Bosnia and Herzegovina]] | length = {{convert|70.5|km|abbr=on}}<ref name=yearbook>[http://fzs.ba/wp-content/uploads/2017/12/Godisnjak-2017.pdf Statistical Yearbook 2017], Institute for Statistics of FBiH, p. 34</ref> | source1_elevation = {{convert|1520|m|abbr=on}}<ref name=yearbook/> | mouth_elevation = {{convert|164|m|abbr=on}}<ref name=yearbook/> | discharge1_avg = | basin_size = }} The '''Vrbanja''' (Врбањa) is a river in western [[Bosnia and Herzegovina]]. Along with the [[Ugar (river)|Ugar]], it is the largest right [[tributary]] of the [[Vrbas (river)|Vrbas]]. Its [[drainage basin]] covers an area of approximately 703.5&nbsp;km<sup>2</sup>. It has significant [[hydropower]] potential.<ref>Spahić M. et al. (2000): Bosna i Hercegovina (1:250.000). Izdavačko preduzeće „Sejtarija“, Sarajevo.</ref><ref>Mučibabić B., Ed. (1998): Geografski atlas Bosne i Hercegovine. Geodetski zavod BiH, Sarajevo, {{ISBN|9958-766-00-0}}.</ref> The estimations of the Vrbanja's length vary from 84&nbsp;km<ref>Bihalji-Merin O. et al., Eds. (1968): Mala enciklopedija Prosveta - Opšta enciklopedija, drugo izdanje (A-LJ), Prosveta, Beograd.</ref> to 95.4&nbsp;km.<ref>Statistički godišnjak Republike Srpske, 2013: Genografski i meteorološki podaci(in Bosnian) (PDF). Republički zavod za statistiku RS, Pristupljeno 18. 1. 2013.bs:</ref><ref>{{cite web | url=http://www.distancesfrom.com/distance-from-Siprage-to-Banja-Luka-Bosna-i-Hercegovina/DistanceHistory/5243320.aspx | title=61 Km - Distance from Siprage to Banja Luka }}</r