Danube

The Danube is the second-longest river in Europe, after the Volga in Russia. It flows through Central and Southeastern Europe, from the Black Forest south into the Black Sea.... Wikipedia

• Countries:  Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria, Romania, Moldova, Ukraine
• Cities:  Ulm, Ingolstadt, Regensburg, Passau, Linz, Vienna, Bratislava, Győr, Komárno, Budapest
• Main source:  Furtwangen im Schwarzwald, Baden-Württemberg, Germany, 1,078 m (3,536.75 ft)
• 2nd source:  St. Georgen im Schwarzwald, Baden-Württemberg, Germany, 940 m (3,083.99 ft)
• River mouth:  Romania
• Progression:  Black Sea
• River system:  Danube
• Width:  Minimum width, Middle Danube (Iron Gates) 150 m (492.13 ft), Lower Danube (Brăila) 400 m (1,312.34 ft), Average width, Upper Danube 300 m (984.25 ft), Middle Danube, 53 m (173.88 ft) (Iron Gates), Lower Danube 9 m (29.53 ft), Maximum depth, Middle Danube (Iron Gates) 90 m (295.28 ft), Lower Danube 34 m (111.55 ft)
• Discharge:  Location, Danube Delta, Minimum rate, 1,790 m³/s (63,213.25 cu ft/s), Average rate, (Period: 1931–2020)6,452 m³/s (227,850.23 cu ft/s), Maximum rate, 15,900 m³/s (561,503.2 cu ft/s)
• Discharge, (location 2):  Location, Belgrade, Average rate, (Period: 1931–2020)5,300 m³/s (187,167.73 cu ft/s)
• Discharge, (location 3):  Location, Budapest, Average rate, (Period: 1931–2020)2,350 m³/s (82,989.47 cu ft/s)
• Discharge, (location 4):  Location, Vienna, Average rate, (Period: 1931–2020)1,920 m³/s (67,804.16 cu ft/s)
• Discharge, (location 5):  Location, Passau (Bavaria, 30 km before town), Average rate, (Period: 1931–2020)580 m³/s (20,482.51 cu ft/s)
• Data source:  DuckDuckGo