The Brkini Hills border on the north on the Reka River, on the southwest on the Materija Valley (Matarsko podolje), on the northwest on the Karst Plateau (Kras), and on the southeast on the Jelšane Valley (Jelšansko podolje). The Brkini region is divided among the municipalities of Hrpelje-Kozina, Pivka, Ilirska Bistrica, and Divača. The region is 25 km (16 mi) long and 7 km (4.3 mi) wide, and covers an area of 180 km2 (69 sq mi). Its central part is 700 to 800 m (2,300 to 2,600 ft) high. The center of the region is the village of Pregarje. The climate is mild, and the geological basis is flyschy, with a minor limestone part in the northeast. The region is a link between the Mediterranean and the continental part of Slovenia.
The name Brkini is believed to be of Italian origin because of the suffixation pattern. This indicates that the root of the name (brk-) may be derived from northern Italian bricco, bricca '(steep) slope'. Derivation from the Slavic noun brdo 'hill' is doubtful.
The Brkini Hills are an economically underdeveloped region, with the main economic activity being fruit farming, in particular plums. Many people from the Brkini Hills commute to work to the nearby centers of Ilirska Bistrica, Podgrad, Hrpelje, and Kozina. During World War II, over one-third of the villages in the Brkini Hills were burned by Italian and German forces due to Partisan activity in the area, which significantly affected the development of the region. The population density is low, with people still leaving.
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- Dobnik, Jože (2006). "Čez Brkine na Slavnik" [Over Brkini on the Slavnik Hill]. Pot kurirjev in vezistov NOV Slovenije [Path of Couriers and Operators of the National Liberation War] (in Slovenian). Društvo Domicilnega odbora kurirjev in vezistov NOV Slovenije. Geopedia.si. ISBN 961-238-581-5. Retrieved 1 February 2012.
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