Kola Superdeep Borehole: The World's Deepest Human-made Hole
The World's Deepest Human-made Hole It is the world's deepest artificial point. The US and the Soviet Union engaged in a great deal of scientific, military, cultural, and technological showboating during the Cold War, ranging from the production of absurdly powerful bombs to the transportation of tortoises around the moon. Few of these impressive feats, however, are as little known as the Soviet Union's achievement in drilling the world's deepest artificial hole. The absurdly deep hole, known as the Kola Superdeep Borehole, was situated not far from the Russian border with Norway on the Kola Peninsula in the icy depths of northwest Russia. The borehole itself was really made up of multiple holes branching out of a core hole, named SG-3, which is the deepest hole in Earth's crust at 12,261 meters (40,226 ft). Despite these impressive depths, the hole's diameter is barely larger than a dinner plate. To put the hole's size into perspective, imagine Mount Ever...