Serpent's Wall

Serpent's Wall (Ukrainian: Змієві вали, romanized: Zmiievi valy) is an ancient system of earthworks (valla) located in the middle Dnieper Ukraine (Naddniprianshchyna)[1] that stretch across primarily Kyiv Oblast, Ukraine.

[1] According to legend, the earthworks are the result of ancient events when a mythical hero (bohatyr), Kozmodemian (or Borysohlib), in order to slay a gargantuan Dragon (Serpent), harnessed it in a giant plow and furrowed.

There are three theories as to what peoples built the walls: either the Sarmatians against the Scythians, or the Goths of Oium against the Huns, or the Early East Slavs against the nomads of the southern steppes.

On the right bank of Dnieper between its tributaries Teteriv and Ros the remnants of the walls form six lines stretching from west to east.

[1] The 1974-85 explorations established that Serpent's Wall is a remnant of wooded earth fortifications built at the end of 10th and the first half of 11th centuries, smaller part in the 12th century, to protect middle Dnieper Ukraine and Kyiv from Pechenegs and Cumans.