Mt Jefferson Volcano - John Seach
Oregon, USA

44.692 N, 121.80 W
summit elevation 3199 m
Stratovolcano

Mt Jefferson is the second highest mountain in Oregon.
The most recent eruption was from a cinder cone on the flank of South Cinder Peak, 
when lava flowed west into Lake Marion.
 

Eruptions of Mt Jefferson
950 AD?, 4500 BC
 

Mt Jefferson Volcano
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Copyright John Seach