Пермский государственный университет
Seventeen thousand ago there was a paleolithic settlement Yegoshikha near the mouth of the Styx. It was explored in 2003 by Kama Archaeological Expedition of Perm State University under the leadership of Andrey Fyodorovich Melnichuk. During the excavations several thousand diverse stone tools were found. It was established that settlement inhabitants hunted for deer and horses.