The Mastník is a

river A river is a natural stream of fresh water that flows on land or inside Subterranean river, caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of ...

in the

Czech Republic The Czech Republic, also known as Czechia, and historically known as Bohemia, is a landlocked country in Central Europe. The country is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the south ...

, a right

tributary A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they ...

of the

Vltava The Vltava ( , ; ) is the longest river in the Czech Republic, a left tributary of the Elbe River. It runs southeast along the Bohemian Forest and then north across Bohemia, through Český Krumlov, České Budějovice, and Prague. It is com ...

River. It flows through the

Central Bohemian Region The Central Bohemian Region ( ; ) is an administrative unit () of the Czech Republic, located in the central part of its historical region of Bohemia. Its administrative centre is in the Czech capital Prague, which lies in the centre of the regio ...

. It is long.

Characteristic

The Mastník originates in the territory of

Střezimíř Střezimíř is a municipality and village in Benešov District in the Central Bohemian Region of the Czech Republic. It has about 300 inhabitants. Administrative division Střezimíř consists of five municipal parts (in brackets population accor ...

in the

Vlašim Uplands Vlašim (; ) is a town in Benešov District in the Central Bohemian Region of the Czech Republic. It has about 11,000 inhabitants. Vlašim is known for the Vlašim Castle and its English park. Administrative division Vlašim consists of seven muni ...

at an elevation of , and flows to Radíč, where it enters the Vltava River at an elevation of in the area of

Slapy Reservoir Slapy Reservoir () is a reservoir in the Central Bohemian Region of the Czech Republic. With an area of , it is the List of dams and reservoirs in the Czech Republic, sixth largest reservoir in the country. Built on the Vltava River, it is part o ...

. It is long. Its

drainage basin A drainage basin is an area of land in which all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, ...

has an area of . The average discharge at its mouth is 1.23 m3/s. The longest tributaries of the Mastník are:

Course

The most populated settlement on the river is the town of

Sedlčany Sedlčany (; ) is a town in Příbram District in the Central Bohemian Region of the Czech Republic. It has about 6,800 inhabitants. Administrative division Sedlčany consists of ten municipal parts (in brackets population according to the 2021 ce ...

. The river flows through the municipal territories of

, Mezno, Miličín, Červený Újezd, Ješetice, Heřmaničky,

Votice Votice (; ) is a town in Benešov District in the Central Bohemian Region of the Czech Republic. It has about 4,800 inhabitants. Administrative division Votice consists of 23 municipal parts (in brackets population according to the 2021 census): ...

, Vojkov, Kosova Hora, Sedlčany, Osečany, Kňovice,

Křečovice Křečovice is a municipality and village in Benešov District in the Central Bohemian Region of the Czech Republic. It has about 800 inhabitants. Administrative division Křečovice consists of 14 municipal parts (in brackets population according ...

and Radíč.

Bodies of water

There are 992 bodies of water in the basin area. The largest of them are the fishpond Velký sedlečský rybník with an area of , built on the brook of Vlkonický potok. Several fishponds are built directly on the Mastník. Part of the

, which is built on the Vltava, extends into the Mastník estuary.

Tourism

The Mastník is suitable for river tourism, but is navigable only in spring, after heavy rains or when water is released from the fishponds in the basin area.

References

External links

River flow at Radíč station
– Flood Warning and Forecasting Service of the

Czech Hydrometeorological Institute The Czech Hydrometeorological Institute (CHMI; ) is the central state office of the Czech Republic in the fields of air quality, meteorology, climatology and hydrology. It is an organization established by the Ministry of the Environment of the Cz ...