Im Harz versiegelt: Was steckt hinter den verbotenen Stollen von Langenstein?

A geologist from the State Office for Geology and Mining discovered a dented carbide lamp in tunnel eight of the Langenstein-Zwieberge complex near Halberstadt, in the middle of a section that, according to official maps, has been completely buried since 1947. Fifty years after the last blast, an object appears in a place that, on paper, shouldn't even exist anymore. How does that add up? The trail leads deep into the history of the Langenstein-Zwieberge subcamp of the Neuengamme concentration camp, which the SS established in 1944 beneath the wooded Thekenberge hills in the Harz Mountains to relocate underground jet engine production lines under the codename "Malachite." Prisoners drove the tunnels into the rock at an inhuman pace, while construction records from the Organisation Todt, a handwritten note about a fourth, unmapped tunnel arm, and a blast report from the Soviet occupation authorities dating from 1947 have left contradictory traces to this day. A mining engineer, an archivist from Halberstadt, and a researcher whose application for access to the site remained unprocessed for months are compiling maps, photographs of a professionally constructed support structure, and ground-penetrating radar measurements to get to the bottom of the discrepancy between the documented information and the actual underground conditions. The project culminates in a joint exploration of Tunnel Eight with a jackhammer and measuring equipment, in a location that hasn't been entered by a human being for seventy-five years. Anyone interested in the history of forced labor underground, forgotten Nazi armaments projects, and the painstaking detective work of archivists and geologists will find this investigation a fascinating exploration of how much remains unresolved beneath the Thekenberge hills. Share your most likely explanation for the gap in the map in the comments and subscribe to the channel for further research into hidden historical sites. Research like this is only possible with your support. If you would like to support our channel: www.donationalerts.com/r/chronik_der_schatten 0:00 - Discovery of the carbide lamp 3:19 - History of the forced labor camp 7:29 - Contradictory maps 20:18 - Eyewitnesses and the death march 24:51 - The fourth tunnel arm 33:57 - Denied research access 42:06 - The overseer's trail 47:10 - Exaggerated war planning 53:45 - Ground-penetrating radar and rehabilitation 1:06:55 - Solving the mystery