It is 104.0 km (64.6 mi) long, making it the 19th longest river in the Czech Republic.

[2] The longest tributaries of the Úhlava are:[3] The river flows through the municipal territories of Železná Ruda, Hamry, Nýrsko, Janovice nad Úhlavou, Bezděkov, Klatovy, Dolany, Švihov, Červené Poříčí, Borovy, Nezdice, Lužany, Příchovice, Přeštice, Dolní Lukavice, Předenice, Čižice and Štěnovice before flowing into the Radbuza at the southern edge of Plzeň.

The largest body of water is the Nýrsko Reservoir with an area of 138 ha (340 acres), built directly on the Úhlava.

In the basin area is also Černé jezero – the largest natural lake in the Czech Republic.

Higher river flow at the time of the event is ensured by the organizer from the Nýrsko Reservoir.