You can see the rock better in this pic.

Volcanic rock is jagged! LOL

Fuji san

Mount Fuji is the highest mountain in Japan at 3,776 m (12,388 ft). An active volcano that last erupted in 1707–08, Mount Fuji straddles the boundary of Shizuoka and Yamanashi prefectures just west of Tokyo, from which it can be seen on a clear day.

This pic was taken on top of Mount Fuji. Most people just go to enjoy the view but I had other ideas. Find rock, lift rock!