Dumnaya mountain (Russian: Думская гора), is a peak in the old part of the town of Polevskoy in Sverdlovsk Oblast, on the right bank of the Polevaya river.

The top of the hill is flat, covered with birch forest, the western slope steepens towards the river bank.

[6][10] Dumnaya mountain was the site of a hillfort (Russian: городище, gorodishche) - place of metallurgical production of itkul culture.

The ancient mines were discovered during the development of the territory by the Russians, and samples of copper ore from them were delivered to Verkhoturye and Tobolsk in 1702.

The ore was examined by the Andrew Vinius, duma diak of the Sibirskiy prikaz, who instructed local authorities to organize mining.

[17][18] The characteristics of the mountain were first documented in 1867 by Ernst Reinhold von Hofmann in Gornyj zhurnal (Russian: Горный журнал).

To guard the firewood there was a gatehouse where children would gather to listen to the tales of one of the watchmen, Grandpa Slyshko (Vasily Alekseevich Khmelinin).

These stories, in which the Dumnaya Gora often appears, the writer later translated them into tales that made up the collection 'The Malachite Box'.

In his memoirs Bazhov also recounts the words of a coachman when he moved to Polevskoy: "Here, they say, Pugachev sat for three days, thinking.

[24] In Bazhov's tale "Dorogoe imjatchko" (Russian: Дорогое имячко), another pure folklore version of the origin of the mountain's name is stated.