Night on Bald Mountain 25 December 1858, has been interpreted as an indication of Mussorgsky's intent to write an opera on the subject of Gogol's short story "St. John's Eve" (, "Vecher nakanune Ivana Kupala", "St. John's Eve"). Gogol's tale contains the elements of witchcraft common to other stories in the "Evenings on a Farm near Dikanka" collection, but does not feature a witches' sabbath. No further plans for this project were mentioned. The theme of a witches' sabbath, the central theme in all subsequent "Night on Bald Mountain" projects, appears to have been derived from the nonextant play "The Witch" (, "Ved′ma") by
Říp Mountain Říp Mountain Říp Mountain (, ; ), also known as Říp Hill, is a 459 m solitary hill rising up from the central Bohemian flatland where, according to legend, the first Czechs settled. Říp is located 20 km south-east of Litoměřice, Czech Republic. The mountain and the rotunda are among the Czech national cultural monuments. Geologically, Říp is the erosional remnant of a Late Oligocene volcano and is composed of basalt nephelites containing olivine granules, amphibole, leucite and — among others — magnetite, so a local magnetic anomaly can even be observed there by the compass. The hill was bare