Marcal
Location
Country	Hungary
Physical characteristics
Source	Bakony
• location	Sümeg
• elevation	240 m (790 ft)
Mouth	Rába
• location	Győr
• coordinates	47°38′11″N 17°31′46″E / 47.6363°N 17.5295°E / 47.6363; 17.5295
Length	100 km (62 mi)
Basin features
Progression	Rába→ Danube→ Black Sea

The Marcal is a right tributary of the Rába which rises near Sümeg in the Bakony region of western Hungary. The river flows north and reaches Ukk on the Little Hungarian Plain. The Marcal follows a path similar to the Rába, and in many places the two rivers are only a kilometer apart. The two rivers meet in the city of Győr.

Other

In October 2010, the Marcal was contaminated in a chemical spill by red mud and temporarily suffered massive loss of aquatic life, from which it has since recovered.^[1][2]