What was the status quo of the Soviet Union's “Dig Through the Earth“ plan, but did not dare to dig again after 12,262 meters? | Luju Bar
Free AstroScience - The Kola Superdeep Borehole, the deepest hole ever dug reaches approximately 7.5 miles below the Earth's surface (12,262 kilometers) | Facebook
![Wwwatlasobscuracom the Kola Superdeep Borehole Was Just 9 Inches in Diameter but at 40230 Feet 12262 Meters Reigns as the Deepest Hole It Took Almost 20 Years to Reach That 75-Mile Depth-Only Wwwatlasobscuracom the Kola Superdeep Borehole Was Just 9 Inches in Diameter but at 40230 Feet 12262 Meters Reigns as the Deepest Hole It Took Almost 20 Years to Reach That 75-Mile Depth-Only](https://pics.me.me/www-atlasobscura-com-the-kola-superdeep-borehole-was-just-9-inches-in-67641449.png)