Bosnia (region)
Bosnia (/Босна; ) is the northern region of Bosnia and Herzegovina, encompassing roughly 81% of the country; the other eponymous region, the southern part, is Herzegovina. "Bosnia" is an informal term for the whole country.
Geography of Bosnia and Herzegovina
Most important of these is the so-called area of “central Bosnian mountains” located between the rivers Vrbas, Lašva, Neretva, Rama and their tributaries. The second one is the area of western Bosnia, bordered by the Vrbas and Una rivers, with its main orebearing formations found in the river-valleys of Sana and Japra, and their tributaries. The third area is eastern Bosnia, around the river Drina between the towns of Foča and Zvornik, the principal mining activity centered around Srebrenica.