Gorski Kotar in the context of Snežnik (plateau)

Kajkavian is a South Slavic supradialect or language spoken primarily by Croats in much of Central Croatia and Gorski Kotar.

It is part of the South Slavic dialect continuum, being transitional to the supradialects of Čakavian, Štokavian and the Slovene language. There are differing opinions over whether Kajkavian is best considered a dialect of the Serbo-Croatian language or a fully-fledged language of its own, as it is only partially mutually intelligible with either Čakavian or Štokavian and bears more similarities to Slovene; it is transitional to and fully mutually intelligible with Prekmurje Slovene and the dialects in Slovenian Lower Styria's region of Prlekija in terms of phonology and vocabulary.

Primorje – Gorski Kotar County (Croatian: Primorsko-goranska županija, pronounced [prǐːmorsko-ɡǒranskaː ʒupǎnija]) is a county in west Croatia, most of it based in the historical and cultural region called Croatia proper and some of it in Istria, including the Bay of Kvarner, the surrounding Northern Croatian Littoral, and the mountainous region of Gorski Kotar. Its center is Rijeka. The county's population was 296,195 at the 2011 census.

The county includes the island territories of Krk, Cres, Lošinj and Rab. It borders Slovenia.

The Dobra (pronounced [dobra]) is a river located mostly in the Karlovac County in the Republic of Croatia. It is 104.2 kilometres (64.7 mi) long and its basin covers an area of 1,428 square kilometres (551 sq mi). Its name is the feminine form of the Croatian adjective meaning "good" but it is over simplistic folk etymology. The river name probably comes from the Celtic transl. cel – transl. 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. It flows past Vrbovsko, to the southeast into the city of Ogulin, where it becomes an underground stream. It takes a sharp northward turn and rises back to the surface north of Ogulin. It continues to the northeast, past the Lešće spa and a hydroelectric plant (built and in test operation as of 2010), running in parallel to the Kupa and Mrežnica, and finally flows into the Kupa north of Karlovac.