<P> Lassen Peak , commonly referred to as Mount Lassen , is the southernmost active volcano in the Cascade Range of the Western United States . Located in the Shasta Cascade region of Northern California , Lassen stands 3,500 ft ( 1,100 m ) above the surrounding terrain and has a volume of 0.5 cu mi ( 2 km ) , making it one of the largest lava domes on Earth . It arose on the destroyed northeastern flank of now - gone Mount Tehama , a stratovolcano at least 1,000 ft ( 300 m ) higher than Lassen Peak . It is part of the Cascade Volcanic Arc , which stretches from southwestern British Columbia to northern California . </P>
<P> Lassen Peak , commonly referred to as Mount Lassen , is the southernmost active volcano in the Cascade Range of the Western United States . Located in the Shasta Cascade region of Northern California , Lassen stands 3,500 ft ( 1,100 m ) above the surrounding terrain and has a volume of 0.5 cu mi ( 2 km ) , making it one of the largest lava domes on Earth . It arose on the destroyed northeastern flank of now - gone Mount Tehama , a stratovolcano at least 1,000 ft ( 300 m ) higher than Lassen Peak . It is part of the Cascade Volcanic Arc , which stretches from southwestern British Columbia to northern California . </P>
which california mountain was made by volcanic eruptions
which california mountain was made by volcanic eruptions
Lassen Peak
Lassen Peak