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Zasavica (bog)

Zasavica
Zasavica (3).JPG
Location Mačva region, Vojvodina province (partially)
Coordinates 44°57′27″N 19°31′35″E / 44.957624°N 19.526369°E / 44.957624; 19.526369Coordinates: 44°57′27″N 19°31′35″E / 44.957624°N 19.526369°E / 44.957624; 19.526369
Type marsh
Primary inflows Zasavica River
Primary outflows Zasavica River
Basin countries Serbia
Max. length 33 kilometres (21 mi)
Max. width 300 metres (330 yd)
Surface area 11.5 square kilometres (4.4 sq mi)
Average depth 2.5 metres (8.2 ft)
Max. depth 10 metres (33 ft)
Surface elevation 76-82 m (250-270 ft)
Settlements Zasavica I
Zasavica II
Noćaj
Ravnje

The Zasavica (Serbian Cyrillic: Засавица) is a bog in the region of Mačva, west-central Serbia. With Obedska bara and Carska Bara one of the major wildlife refuges and one of the last authentically preserved wetlands in Serbia. In the 2000s became a popular attraction with the successful reintroduction of the beavers, which had become extinct 100 years ago.

Zasavica is located just several kilometers across the Sava river from the town of Sremska Mitrovica. The entire Zasavica system is located in the Mačva region and is administratively divided between the province of Vojvodina (northern part; municipality of Sremska Mitrovica) and Central Serbia (southern part; municipality of Bogatić. It roughly extends between the settlements of Crna Bara, Banovo Polje, Ravnje, Zasavica I, Zasavica II, Salaš Noćajski, Noćaj and Mačvanska Mitrovica.

The Zasavica bog is a marshy lowland in the floodplain of the Sava river. It is a typical elongated oxbow (in Serbian: mrtvaja, dead [water]). The fossilized, parallel bed of the Sava is so elongated that it actually stretches almost to the Drina river. In time, Zasavica river was formed from the subterranean waters from the Drina and from several streams, most notably, Duboka Jovača and Prekopac canal (gravitationally, from the Cer mountain. The final section connecting Zasavica and Sava has been channeled (Bogaz canal). The river slowly meanders into and through the bog, widening from 50 metres (55 yd) meters to almost 300 metres (330 yd). The marsh, consisting of several connected bogs, covers an area of 11.5 square kilometres (4.4 sq mi). During normal water levels, the bog is 2.5 metres (8.2 ft) deep on average, but it can get up to 10 metres (33 ft) deep. The marshland's altitude varies from 76 to 82 meters (250 to 270 ft). The entire biotype includes also the Batar stream and several other canal-tributaries to Zasavica, and consists of an ecological row of water and marsh systems with fragments of flooded meadows and forests. Through the rivers Sava and Danube, the Zasavica biotype belongs to the Black Sea drainage basin.


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