Pirin Macedonia (region)
It covers an area of about 6,798 km2 which is 10.18% of the geographical region Macedonia. One of the regional centers is Blagoevgrad, also known as Gorna Dzumaya, the old name of the city. The region is bordering with Kyustendil Province and Sofia Province on the north, Pazardzhik Province and Smolyan Province on the east, Greece on the south and Republic of Macedonia on the west. The population is estimated around 325.000 people.
Geography of the Republic of Macedonia
The east border with Bulgaria has length of approximately 148 km. The settled boundary from Yugoslavia and the People's Republic of Bulgaria was accepted after the independence in 1992. The boundary starts from the tripoint with Greece, the boundary runs north, crossing the River of Strumica and then rising to the watershed which it follows northwards and then north-westwards to the tripoint with Serbia.