The Soudan Underground Laboratory is a research facility located in the Soudan Mine in Minnesota, USA. It is situated about 2,341 feet underground, providing a unique environment for scientific experiments, particularly in the field of particle physics. The lab is primarily used for studying neutrinos and dark matter, which are fundamental components of the universe. Established in the 1990s, the laboratory hosts several experiments, including the MINOS (Main Injector Neutrino Oscillation Search) and the Soudan 2 experiment. Its deep underground location helps shield sensitive equipment from cosmic rays, allowing researchers to conduct precise measurements. The lab is part of the broader effort to understand the fundamental forces and particles that govern the universe.