Izora River

At the mouth of the Izhora River near Kolpino, the stream width reaches 60 meters and the depth is 4 meters. The modern source of the river is located in a spring on the Izhora Upland near the village of Skvoritsy in the Gatchina District, where its upper part was formerly called Pudost. It was here, at the mouth, on July 15, 1240, that the Novgorodians and Ladozhans under the command of Alexander Nevsky defeated the Swedish camp. To divert excess floodwaters in Kolpino, a straight canal with a dam at the end was built.