”The russian wall”

A wall located in the nature reserve, in the eastern part of the Judarn. The wall is about 1100 meters long, about 2 meters high and was built most probably in the 18th century, when Charles XII ruled. The Great Northern War took place in the early 1700s and hence it is speculated, and is a tradition, that Russian prisoners of war from the war were the ones who built the wall in 1719, //Wikipedia.