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How were the Fuji Five Lakes formed?
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Mount Fuji
Fog in the foreground of Mount Fuji, Japan.
The Fuji Five Lakes (Fuji Goko)—comprising Lake Yamanaka, Lake Kawaguchi, Lake Sai, Lake Shōji, and Lake Motosu—were formed by the damming effects of lava flows on the northern slopes of Mount Fuji.1