Vitosha Stone Rivers
The Vitosha stone rivers (Bulgarian: каменна река / ‘kamenna reka’, pl. каменни реки / ‘kamenni reki’), located in Bulgaria, are situated in the middle and upper mountain belts at elevation over 1,000 m above sea level. Among the largest ones are those on the Subalpine plateaus surrounding the summit Cherni Vrah (2290 m), and in the upper courses of the mountain’s rivers, extending over 2 km at the Zlatnite Mostove (‘Golden Bridges’) site in the upper course of Vladayska River, and over 1 km in the case of Boyanska, Bistritsa, and Struma Rivers. Golyamata Gramada (Big Pile) Stone River in Vitoshka Bistritsa River valley is up to 300 m wide, and other stone run formations sprawl even wider on the mountain slopes, notably the ‘stone sea’ at the northern foot of Kamen Del Peak. Some boulders are several dozen to over three hundred cubic metres in volume, and sixty to several hundred tons weight.
While Vitosha was known already to Thucydides, Aristotle, and Pliny the Elder in Antiquity, its first modern geological survey was made as late as 1836 by the German-French-Austrian scientist Ami Boué who incidentally had studied medicine at Edinburgh University just few years before Charles Darwin did. Since Boué, it took several decades of argument to conclude that Vitosha stone rivers were not true glacial moraines as some believed.
Exploited in the past as a source of cobblestone material for Sofia’s streets, nowadays the stone rivers are protected by law. Special permission would be granted in exceptional cases for the removal of an odd boulder for sculpture artwork. As a nature park situated right by the outskirts of Sofia (Cherni Vrah itself being but 16 km away from the central square of Sofia), Vitosha is a major tourist destination. Some 1.5 million people from dozens of nations visit the mountain annually, and the stone rivers feature high on the list of tourist attractions.
Read more about this topic: Stone Run
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—George Gordon Noel Byron (1788–1824)
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