Which river flows through the Russian capital city of Moscow?

The Moskva is a river that flows through the Moscow and Smolensk Oblasts in Russia, and is a tributary of the Oka River. Moskva and Moscow are two different renderings of the same Russian word 'Москва'. The city is named after the river. The origin of the name is unknown, although several theories exist. One theory suggests that the source of the name is an ancient Finnic language, in which it means "marshy place, dark waters".

The 473 km (294 mi) long river flows through the entire Russian capital city of Moscow. In the navigation season of the Moskva River, it is a treat to roam the river via boat. Along the way, views of the Kremlin and other Russian Federation government buildings may be seen. The river is generally bright and clean.

As of 2007, there are 49 bridges across the Moskva River and its canals within Moscow city limits; the first stone bridge, Bolshoy Kamenny Bridge, was erected in 1692. Within the city, the river is 120-200 m (390-660 ft) wide, the narrowest point being under the Kremlin walls. Today, most drinking water for the city of Moscow is collected from stations on the Moskva River.