Visok is a region in Serbia

Serbia

Serbia , officially the Republic of Serbia , is a landlocked country located at the crossroads of Central and Southeast Europe, covering the southern part of the Carpathian basin and the central part of the Balkans...

 and in Bulgaria

Bulgaria

Bulgaria , officially the Republic of Bulgaria , is a parliamentary democracy within a unitary constitutional republic in Southeast Europe. The country borders Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, as well as the Black Sea to the east...

 that lies between the main ranges of the Old Mountain

Balkan Mountains

The Balkan mountain range is a mountain range in the eastern part of the Balkan Peninsula. The Balkan range runs 560 km from the Vrashka Chuka Peak on the border between Bulgaria and eastern Serbia eastward through central Bulgaria to Cape Emine on the Black Sea...

 and Vidlic Mountain. In Bulgaria is situated a small part of the eastern area of the region. It is 35 km far away from Pirot

Pirot

Pirot is a town and municipality located in south-eastern Serbia. According to 2011 census, the town has a total population of 38,432, while the population of the municipality is 57,911...

, and about 350 km from Belgrade

Belgrade

Belgrade is the capital and largest city of Serbia. It is located at the confluence of the Sava and Danube rivers, where the Pannonian Plain meets the Balkans. According to official results of Census 2011, the city has a population of 1,639,121. It is one of the 15 largest cities in Europe...

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Climate characteristics

The southwestern slopes of the Old Mountain are characterized by a moderate/continental sub-mountain/mountain climate, which gets colder and more humid from lower to higher elevations. The coldest month is January, and the warmest is July.

Geomorphological characteristics

Region Visok is characterized by wide variety and identity of relief

Relief

Relief is a sculptural technique. The term relief is from the Latin verb levo, to raise. To create a sculpture in relief is thus to give the impression that the sculpted material has been raised above the background plane...

, with steep valley

Valley

In geology, a valley or dale is a depression with predominant extent in one direction. A very deep river valley may be called a canyon or gorge.The terms U-shaped and V-shaped are descriptive terms of geography to characterize the form of valleys...

s of mainly short river

River

A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

s. Basically, it is of tectonic origin, but it was through intensive erosion

Erosion

Erosion is when materials are removed from the surface and changed into something else. It only works by hydraulic actions and transport of solids in the natural environment, and leads to the deposition of these materials elsewhere...

, mostly fluvial erosion, that it was shaped.

Hydrological characteristics

Drainage network

Drainage system (Geomorphology)

In geomorphology, a drainage system is the pattern formed by the streams, rivers, and lakes in a particular drainage basin. They are governed by the topography of the land, whether a particular region is dominated by hard or soft rocks, and the gradient of the land. Geomorphologists and...

 of this region is well developed. The Visočica River, with its tributaries, forms the densest drainage network in Serbia

Serbia

Serbia , officially the Republic of Serbia , is a landlocked country located at the crossroads of Central and Southeast Europe, covering the southern part of the Carpathian basin and the central part of the Balkans...

. Also, very important hydrological object of Visok is Lake Zavoj

Lake Zavoj

Zavoj Lake is an artificial lake in eastern Serbia, on the Visočica River. It was created in 1963 after a major landslide which dammed the river and the natural dam was later replaced with a hydroelectric dam "Zavoj".- Location :Lake Zavoj is located in eastern Serbia, in the northern part of the...

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