Sázava (river)
The Sázava is a river in the Czech Republic, a right tributary of the Vltava River. It flows through the Vysočina and Central Bohemian regions. It is long, making it the 6th longest river in the Czech Republic.
Etymology
The first written mention of the river is from 1045, when it was called Zazoa in a Latin text. Other early spellings of the name were Zazaua and Sassava. There are several theories about the origin of the name. One of the more likely theories says that the name could be derived from the Proto-Slavic verb sadjati, meaning "to sediment", "to sink to the bottom". According to another theory, the name has its basis in the Celtic word sathá, which meant "grove, forest", as well as "swarming, flickering".Characteristic
The Sázava originates in Cikháj in the Upper Svratka Highlands at an elevation of and flows to Davle, where it enters the Vltava River at an elevation of. It is long, making it the 6th longest river in the Czech Republic. Its drainage basin has an area of.The longest tributaries of the Sázava are:
| Tributary | Length | River km | Side |
| Želivka | 103.9 | 98.8 | left |
| Blanice | 66.0 | 78.6 | left |
| Šlapanka | 39.0 | 164.4 | left |
| Konopišťský potok | 33.0 | 31.3 | left |
| Sázavka | 32.2 | 144.8 | right |
| Janovický potok | 28.1 | 19.2 | left |
| Perlový potok | 23.1 | 153.3 | left |
| Jevanský potok | 20.9 | 48.7 | right |
| Úsobský potok | 20.7 | 156.9 | left |
| Pstružný potok | 18.8 | 141.1 | left |
| Štěpánovský potok | 18.7 | 95.9 | left |
| Břevnický potok | 18.5 | 166.6 | right |
| Křešický potok | 18.2 | 72.0 | left |
Settlements
The most notable settlements on the river are the towns of Žďár nad Sázavou and Havlíčkův Brod. The river meanders in a generally north-westerly direction and flows past Polnička, Žďár nad Sázavou, Hamry nad Sázavou, Sázava (Žďár nad Sázavou District), Nové Dvory, Přibyslav, Pohled, Havlíčkův Brod, Okrouhlice, Pohleď, Světlá nad Sázavou, Trpišovice, Vilémovice, Ledeč nad Sázavou and Chřenovice.After it crosses the border between the Vysočina and Central Bohemian regions, it flows past Vlastějovice, Horka II, Zruč nad Sázavou, Kácov, Tichonice, Soběšín, Český Šternberk, Rataje nad Sázavou, Ledečko, Samopše and Sázava (Benešov District). From here it flows generally westward, past Stříbrná Skalice, Chocerady, Hvězdonice, Senohraby, Čtyřkoly, Čerčany, Poříčí nad Sázavou, Nespeky, Týnec nad Sázavou, Krhanice, Kamenný Přívoz, reaching its confluence with the Vltava at the boundary between Hradištko and Davle, about south of the municipal border of Prague.