Usu-Shinzan and Lake Toya April 4, 2000
from south direction

Mount Usu and Lake Toya April 5, 2000
from south direction

April 8, 2000
Left: Konpira Crater, Right: Nishi-yama Crater,
from north direction

April 8, 2000
Left: Konpira Crater, Right: Nishi-yama Crater,
from north west direction

April 8, 2000
Left: Konpira Crater, Right: Nishi-yama Crater,
from west direction

April 26, 2000
front:Konpira Crater, behind: Nishi-yama Crater,
　from north east direction