The Exhibition Room of Volcanic Materials of Mt. Usu (Toyako Town) is next to Nishi Shinzan Numa, which is a big pond created by the volcanic activity of Mt. Usu in 2000. After part of route 230 caved-in, the pond was created. The building housing this exhibition room used to be the headquarters of fire defense for the area around Lake Toya. After it was damaged, the headquarters moved to the different location. The building then became the present exhibition facility, although the floor is slightly off flat. There are many photos to inform people of what the volcanic activities in 2000 were like.