Modau

Modau
The Modau running through the town of Ober-Ramstadt.
Basin features
Main source	491 m (1,611 ft) 49°43′56.7″N 8°46′12.4″E / 49.732417°N 8.770111°E / 49.732417; 8.770111 (Modau source)
River mouth	84 m (276 ft) 49°48′50″N 8°27′52″E / 49.81389°N 8.46444°E / 49.81389; 8.46444 (Modau mouth)Coordinates: 49°48′50″N 8°27′52″E / 49.81389°N 8.46444°E / 49.81389; 8.46444 (Modau mouth)
Progression	Rhine → North Sea
River system	Rhine
Basin size	34.6 km2 (13.4 sq mi)
Physical characteristics
Length	44 km (27 mi)

The Modau is a 44 km long right tributary of the Rhine River running through the German state of Hesse. Historically, there have been many watermills on the river and its tributaries, giving rise to the name Mühltal ("Mill Valley"), a district through which the river flows.