Concó is a river in northern Hungary, a tributary of the

Danube The Danube ( ; ) is a river that was once a long-standing frontier of the Roman Empire and today connects 10 European countries, running through their territories or being a border. Originating in Germany, the Danube flows southeast for , pa ...

. It rises in

Fejér County Fejér ( hu, Fejér megye, ) is an administrative county (comitatus or megye) in Central Hungary. It lies on the west bank of the river Danube and nearly touches the eastern shore of Lake Balaton. It shares borders with the Hungarian counties V ...

and enters the Danube in

Komárom-Esztergom County Komárom-Esztergom ( hu, Komárom-Esztergom megye, ; german: Komitat Komorn-Gran; sk, Komárňansko-ostrihomská župa) is an administrative Hungarian county in Central Transdanubia Region; its shares its northern border the Danube with Slova ...

near the city of

Komárom Komárom (Hungarian: ; german: Komorn; la, Brigetio, later ; sk, Komárno) is a city in Hungary on the south bank of the Danube in Komárom-Esztergom County. Komárno, Slovakia, is on the northern bank. Komárom was formerly a separate villag ...

Geography

The Concó rises on the northern slopes of the Bakony range of the

Transdanubian Mountains __NOTOC__ The Transdanubian Mountains (sometimes also referred to as ''Bakony Forest, Dunántúl Highlands, Highlands of Dunántúl, Highlands of Transdanubia, Mountains of Dunántúl, Mountains of Transdanubia, Transdanubian Central Range, Tra ...

and the western and northwestern slopes of the

Vértes Hills Vértes is a mountain range in north-western Hungary, in the Central Transdanubian region, between the ranges Bakony and Gerecse. The Vértes Mountains are part of the Transdanubian Mountains. Geography The area of the Vértes occupies . It is abo ...

. It flows basically north and slightly west. In the mountains there are warm springs due to tectonic uplift. In the lower reaches the Concó is subject to flooding. As of 2009, sewage, wastewater and drainage from community landfills went essentially untreated into the river. Mostly the area of the Concó Basin is wilderness in the south and farmlands in the middle and northern sections. The only significant industrial activity is in

Kisbér Kisbér (german: Beer) is a town in northern Hungary, in Komárom-Esztergom county. It is the administrative centre of Kisbér District. The town was first mentioned in 1277. Royal Stud Kisber was home to the Imperial-Royal Stud where a Thoro ...

, in the middle section. The Concó discharges into the Danube at the village of Ács. The bedrock consists of

Triassic The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest period ...

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

s and sandstones, overlain by a thick layer of more recent alluvial sediments, predominantly sand and clay.

History

The

Romans Roman or Romans most often refers to: *Rome, the capital city of Italy * Ancient Rome, Roman civilization from 8th century BC to 5th century AD *Roman people, the people of ancient Rome *''Epistle to the Romans'', shortened to ''Romans'', a lette ...

had a

military camp A military camp or bivouac is a semi-permanent military base, for the lodging of an army. Camps are erected when a military force travels away from a major installation or fort during training or operations, and often have the form of large cam ...

along the Concó near Ács. The

Battle of Bolia The Battle of Bolia, was a battle in 469 between the Ostrogoths ( Amal Goths) and a coalition of Germanic tribes in the Roman province of Pannonia. It was fought on the south side of the Danube near its confluence with the river Bolia, in presen ...

in 469 between various

Germanic tribes The Germanic peoples were historical groups of people that once occupied Central Europe and Scandinavia during antiquity and into the early Middle Ages. Since the 19th century, they have traditionally been defined by the use of ancient and ear ...

may have been fought on the banks of the Concó.

Notes and references

External links

* (Map showing Concó watershed) {{Clear Tributaries of the Danube Rivers of Hungary