Territory of the Green Department is situated between the villages of Nikola-Lenivets and Zvizji. About 9,000 years ago, in the post-ice age period this are was the bed of the river Ugra which was then very different from what it is nowadays; it created a giant meander with a strait in the place of the present-day Zvizji ford. Over time the river has changed its flow, and the old be was replaced by a field, its outer perimeter shaped by labyrinths of forest masses, from the center of which a fascinating view opens.
The ancient bed of the Ugra left a natural geoglyph 3 km in diameter. As viewed from above, it reminds two letters of the Greek alphabet – Alpha and Omega. Such is born the fantasy of a mysterious fragile book of nature which is at the same time in the state of completed and being completed.