The expedition camp
The expedition camp on the Chistovodnoe river bank
Measuring of water parameters
Measuring of water parameters Ђin cityї in Chistovodnoe river
Ussury river
Measuring of pH and dissolved oxiden by P.Shand in joint expeditions (Ussury river, Kirovsky village)
Quiet summer evening on the Ussury river.
Quiet summer evening on the Ussury river

яндекс.ћетрика