Into the lake many rivers and streams flow, Shitovskoy source, Big Black, Kalynivka, Beryozovka Lebyazhka and Mulyanka.

Iset lake is rich in fish, including rudd, bream, tench, ruff, perch and pike.

In 1850 in the mouth of the river Iset began construction of an earthen dam.

On the shores of the lake, archaeologists found more than a dozen sites of ancient people, dating from the Neolithic to the Iron Age.

On one of the islands was found deposited ocher ancient images, but with the rise of the lake level they were flooded.