Deep in the Caucasus Mountains where Georgia, Turkey, and Iran meet lies a strange shaft locals call "Kahur delkin shagum" — the humming pit. This vertical cave produces a periodic hum at exactly 17 Hz, which geologist Victor Resnoff documented in a 2008 paper on deep bore harmonic frequencies. The eerie sound earned it a reputation as a haunted place where "the devil lives there." 🕳️
Khara-Hora shaft: location, local lore, and 17 Hz humming phenomenon
IranGeneral
Site mentioned
Key facts
- Khara-Hora shaft is located on the border of Georgia, Turkey, and Iran in the Caucasus Mountains
- Locally nicknamed the "Kahur delkin shagum" (humming pit) because it produces an unusual periodic sound
- Geologist Victor Resnoff wrote a paper in 2008 titled "harmonic frequency emissions of deep bore structures in the western Caucasus"
- The shaft emits a periodic humming at a frequency of 17 hertz
- Locals considered the site haunted and said "the devil lives there"
Sources
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