Serpukhov village Mirny

Nara River (Russian: Нара) is a river in the Moscow Oblast and Kaluga Oblast in Russia. It is a left tributary of the Oka River. The length of the river is 158 kilometres (98 mi). The area of its basin is 2,030 square kilometres (780 sq mi). The Nara River freezes up in November–December and stays under the ice until April.

Serpukhovsky District (Russian: Серпухо́вский райо́н) is an administrative and municipal district (raion), one of the thirty-six in Moscow Oblast, Russia. It is located in the south of the oblast. The area of the district is 1,012.714 square kilometers (391.011 sq mi). Its administrative center is the city of Serpukhov (which is not administratively a part of the district).

Vysotsky Monastery (Russian: Высоцкий монастырь) is a walled Russian Orthodox monastery commanding the high left bank of the Nara River in Serpukhov, close to its confluence with the Oka. Its name stems from the Russian word for "heights".The monastery was founded in the 1370s by Vladimir the Bold and long served as a border fortress defending the southern approaches to Moscow from the Tatars.