Bolshaya Ussurka
The Bolshaya Ussurka is a river in the Russian Far East in Primorsky Krai. It is a right tributary of the Ussuri, which it meets near Dalnerechensk, some 357 km from the mouth of the Ussuri.
The area of the Bolshaya Ussurka drainage basin is approximately. It is long. The river was known as "Iman" until the 1972 Renaming of geographical sites in the Russian Far East.
The major tributaries of the Bolshaya Ussurka are the rivers Malinovka, Marevka, Naumovka and Armu.