Abandoned mines in Japan have always been a great attraction for all urban explorers. This ruin is really old, even the original shape of the building is more or less gone. The abandoned constructions of the mine look like a big spider devouring the yellowish mountain slowly but surely.
Young residents are leaving the countryside in droves and concentrating in larger cities. This area in rural Japan was once a busy hub for workers. But as the world pivoted to natural gas, this plant was no longer financially feasible to operate, so the workers walked away, leaving acres of pitted hillsides and valleys behind.