Very dramatic, very Lord of the Rings.
Mount Shasta fact:
Geologically, Shasta is remarkable for a giant landslide that removed the entire northern side of the volcano between about 300,000 to 360,000 years ago. With an estimated volume of 6.5 cubic km, it is one of the largest avalanches known on earth. The slide flowed northwestward into Shasta Valley where the Shasta River now cuts through the 28 mile long debris flow deposit.
The last confirmed eruption of Mt Shasta may have happened as recently as 1786 and may have been observed by the explorer La Pérouse from his ship.