The is a
neutrino physics laboratory located underground in the Mozumi
Mine of the Kamioka Mining and Smelting Co. near the Kamioka section of the city of
Hida in
Gifu Prefecture,
Japan. A set of groundbreaking neutrino experiments have taken place at the observatory over the past two
decades. All of the experiments have been very large and have contributed substantially to the advancement of
particle physics, in particular to the study of
neutrino astronomy and
neutrino oscillation.