ABOUT
Geography

Although external historical
events often changed Bulgaria's national boundaries in its first century of
existence, natural terrain features defined most boundaries after 1944, and no
significant group of people suffered serious economic hardship because of
border delineation. Postwar Bulgaria contained a large percentage of the ethnic
Bulgarian
people, although numerous migrations into and out of Bulgaria occurred at
various times.
Bulgaria has a total border of
about 2,264 km. Rivers account for about 680 km and the Black Sea coast for 400 km; the southern
and western borders are mainly defined by ridges in high
terrain. The western and northern boundaries are shared with Serbia and Montenegro and Romania,
respectively, and the Black Sea coastline constitutes the entire eastern
border. The Romanian border follows the Danube for 464 km from the northwestern
corner of the country to the city of Silistra and
then cuts to the east-southeast for 136 km. The Danube, with steep bluffs on
the Bulgarian side and a wide area of swamps and marshes on the Romanian side,
is one of the most effective river boundaries in Europe. The line through Dobruja is
arbitrary and was redrawn several times according to international treaties. In
that process, most inhabitants with strong national preferences resettled in
the country of their choice. Borders to the south are with Greece and Turkey, the
border with Greece being 491 kilometres long, and the Turkish border having a
length of 240 kilometres.