○
Topographic
boundary line
Lava flows
Crater
Pyroclastic
cone
Legend (Line)
S : Sandbar
O : Former land area
L : Lava flows
C : Pyroclastic cone
Legend
(Classification symbol)
Nishinoshima Island
Topographic
interpretation map
①
②
December 10, 2014 Photography
[③
1]
Attachment 5-1