Moskwa, a branch of the Volga's tributary, the Oka, rises in a marsh in the east of Smolensk, flows east to the city of Moscow, and thence 112 miles south-east to the Oka. Its total course is 305 miles. It is navigable from its mouth to Moscow, except between November and April, when it is generally frozen, and is connected directly with the Volga by the Moskwa Canal.
Moskwa
Chambers's Encyclopaedia, Volume 7: Maltebrun to Pearson, p. 326
Source scan(s): p. 0335