Starting as a small stream welling under the mountain, heading towards its about 10 kilometers long confluence, Mrtvica takes on its way numerous mountain streams, torrents and other mountain waters and grows into one of the most abundant tributaries of the river Morača in its upper course. Mrtvica canyon is 35 km away from Kolašin in direction towards Podgorica.
Its banks are steep, high and covered in thick vegetation. At some parts a 9 kilometers long canyon is up to 1,100 meters deep. There is a walking path on its left bank. Its special attractions are springs called “Bijeli nerini”. The river has many cascades, waterfalls and small beaches which are rest areas on the tracking tour through the canyon. Near Zeleni vir there is an old stone bridge that Montenegrin Prince Danilo Petrović arose in memory to his mother.
Clear water of this river is rich in trout and grayling.