The Manpupuner or the Seven Strong Men Rock Formations or Poles of the Komi Republic are a set of 7 gigantic abnormally shaped stone pillars located west of the Ural mountains in the Troitsko-Pechorsky District of the Komi Republic. They are located on the territory of the Pechoro-Ilychski Reserve on the mountain Man-Pupu-nyor, in the interfluve of the rivers Ilych and Pechory. The second name is "Bolvano-Iz", that from the Komi language - "Mountain of idols". Hence the folk simplified name of the formation in Russian: "Bolvany". The total number of formations is 7, the hight varying between 30 and 42 metres. There are numerous legends associated with Manpunpunyor. Earlier, the formations were considered sacred by local Mansi people. Today, they are included into the Seven Wonders of Russia list.

About 200 million years ago on the place of stone pillars were high mountains. Rain, snow, wind, frost and heat gradually destroyed mountains and, in the first place, weak rocks. Solid sericite-quartzite schists, from which the remains are composed, were destroyed less and survived to this day, and soft rocks were destroyed by weathering and carried down by water and wind in relief depressions.