Ilomska is right tributary of the
Ugar river in (
Bosnia
Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. Bosnia and He ...
). It is about in length, and its source is
Vlašić Mountain. It is an essential body of water for surrounding wildlife. Ilomska flows between the
Žežnička Greda (altitude ) and
Javorak ()
mountains
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher th ...
. It has a curved flow around Lisina () and
Runjavica () mountains, through coniferous (
fir
Firs (''Abies'') are a genus of 48–56 species of evergreen coniferous trees in the family (biology), family Pinaceae. They are found on mountains throughout much of North America, North and Central America, Europe, Asia, and North Africa. The ...
and
spruce
A spruce is a tree of the genus ''Picea'' (), a genus of about 35 species of coniferous evergreen trees in the family Pinaceae, found in the northern temperate and boreal (taiga) regions of the Earth. ''Picea'' is the sole genus in the subfami ...
) and mixed spruce-
beech
Beech (''Fagus'') is a genus of deciduous trees in the family Fagaceae, native to temperate Europe, Asia, and North America. Recent classifications recognize 10 to 13 species in two distinct subgenera, ''Engleriana'' and ''Fagus''. The ''Engle ...
woods.
Its flow below
Petrovo polje ( en, Peter's plain) has sharp curves.
The richest right contributors are
Manatovac (large stream),
Mala Ilomska
Mala Ilomska is very short (around 2 km) right tributary of Ilomska – one of right tributaries of Ugar − in Central Bosnia, Bosnia and Herzegovina, Skender Vakuf
{{Unreferenced, date=June 2019
Skender ( sq, Skënder) ( bs, Skender) is a ...
(Little Ilomska) and
Devetero vrela
Devetero vrela (English ''Nine Sources'') is a short right tributary of the Ilomska river, below Petrovo Polje.Vojnogeografski institut, Ed. (1962): Šiprage (List karte 1:25.000, Izohipse na 20 m). Vojnogeografski institut, Beograd / Military Ge ...
(Nine springs), and left tributary
Crna rijeka