Question

Longest south of the earth according to area

Answer 1

Answer:

*The lowest point underground ever reached was 12,262 m (40,230 feet) deep (SG-3 at Kola superdeep borehole).

*The lowest human-sized point underground is 3,900 m (12,800 feet) below ground at the TauTona Mine, Carletonville, South Africa.

*The lowest (from sea level) artificially made point with open sky may be the Hambach surface mine, Germany, which reaches a depth of 293 m (961 feet) below sea level.