[1] Its name is the feminine form of the Croatian adjective meaning "good" but it is over simplistic folk etymology.
dubrum, dubron meaning 'water', Illyrian δυβρις (dybris) 'deep' or Old Slavonic dъbrь (dubri, debra) also 'deep' or 'valley'.
Dobra rises in Gorski Kotar near Skrad and Ravna Gora, where it flows first to the north and then turns to the east.
In 2010 the Lešće hydroelectric power plant started operating on the Lower Dobra section of the river.
The Upper Dobra river was diverted into the system of the Hydroelectric power plant Gojak some 1.5 km upstream of Đula's pit, and by doing that an artificial lake Bukovnik was created.