The Siberian Superdeep-Borehole Of 2009

Level 2 – Bergie Web
CONSPIRACY

The Kola Superdeep Borehole SG-3 (Russian: Кольская сверхглубокая скважина СГ-3, romanized: Kol’skaya sverkhglubokaya skvazhina SG-3) is the deepest human-made hole on Earth, which attained maximum true vertical depth of 12,262 metres (40,230 ft; 7.619 mi) in 1989.[1] It is the result of a scientific drilling effort to penetrate as deep as possible into the Earth’s crust conducted by the Soviet Union in the Pechengsky District of the Kola Peninsula, near the Russian border with Norway.

LINKS
https://en.wikipedia.org/wiki/Kola_Superdeep_Borehole