Ilomska flows between the Žežnička Greda (altitude 1,477 metres or 4,846 feet) and Javorak (1,499 m or 4,918 ft) mountains.

At the Ravni Omar (mountain meadows), below Lisina Mountain, it enters a narrow highland continuing to “Korićanski most” (Korićani's Bridge), and a deep canyon below Korićanske stijene and Marića stijene (Marići's Rocks).

After two attractive Ilomska waterfalls, the river flows into the Ugar, a few kilometers downstream from Vitovlje village.

Waterfalls in this wilderness attract mountain-climbers, tourists and fishermen, and the vertical rocky wall under the river's falls is suitable for alpinist exercises.

[5][6][7] Above Ilomska River there is Korićani village and a canyon below it (Korićanske stijene), the scaffold of more than 200 Bosniaks and Croats – the victims of the Serbs Police and Army forces (on August 21, 1992), a crime prosecuted and sentenced through number of indictments at The ICTY Tribunal in The Hague.