In recent years, a new layer of rock showing how the Jomon people mined obsidian was discovered at the Takayama Ruins and Hoshikuso Pass Obsidian Mine, a nationally designated historic site. displays Hoshikuso Museum has been opened, where visitors can see the excavated layer of rock and experience the activities of the Jomon people at that time. The exterior walls of the building have changed color due to rust over the years, and the message is that the memory of obsidian is preserved and passed on. Inside displays room, the layers of rock, 20 meters long and over 5 meters high, stand on both walls of the corridor, and are reproduced exactly as they were discovered during the excavation. The layers of rock have stepped bumps and were created by the soil and sand that the Jomon people dug up in the ground in search of obsidian. Projection mapping was applied to the lines of the layers of rock to recreate the activities of the Jomon people at that time in video. Through immersive images and impressive geological strata, you can experience the passion of the Jomon people, who mined for generations in search of precious obsidian, which is only found in limited areas.