Back أولزا Arabic نهر اولزا ARZ Ольшэ Byelorussian Olza (suba) CEB Olše (řeka) Czech Olše Danish Olsa German Όλζα (ποταμός) Greek Olše Esperanto Río Olza Spanish
| Olza | |
|---|---|
&sq=&lang=&file=File:Ol%C5%A1e_v_Karvin%C3%A9.jpg) The Olza in Karviná | |
 | |
| Location | |
| Countries | |
| Region/ Voivodeship | |
| Physical characteristics | |
| Source | |
| • location | Istebna, Silesian Beskids |
| • elevation | 842 m (2,762 ft) |
| Mouth | |
• location | Oder |
• coordinates | 49°56′55″N 18°20′0″E / 49.94861°N 18.33333°E |
• elevation | 190 m (620 ft) |
| Length | 89.1 km (55.4 mi) |
| Basin size | 1,107 km2 (427 sq mi) |
| Discharge | |
| • average | 15.0 m3/s (530 cu ft/s) near estuary |
| Basin features | |
| Progression | Oder→ Baltic Sea |
The Olza (Czech: Olše, German: Olsa) is a river in the Czech Republic and Poland, a right tributary of the Oder River. It flows through the Silesian Voivodeship in Poland and through the Moravian-Silesian Region in the Czech Republic. It is 89.1 km (55.4 mi) long. The river forms a significant part of the Czech-Polish state border.