The nature reserve was created in 1964 for the protection of a forest area with dunes on the eastern shore of Lake Võrtsjärv. The Lake Võrtsjärv abrasion terrace that is up to 13 m high can be seen in the nature reserve. Its absolute height is 50 m, i.e. 17 m above the surface of Lake Võrtsjärv.
A 90-year-old pine forest with a few spruces, which is rich in cowberries and blueberries, grows on Trepimägi Hill. The size of the conservation area is 14 ha.