Iskăr Gorge is a gorge passing through the
Balkan Mountains (Stara Planina) in
Bulgaria. It is the chief pass through the Balkans, which otherwise cross northern Bulgaria in a solid line.
The pass connects the capital of
Sofia with other major cities in the country, such as
Mezdra. There is a road and a railway through the pass, following the course of the
Iskar River.
The canyon walls are made of limestone and sandstone, which was carved down by the Iskar over thousands of years, resulting in rugged crags and towers throughout.
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