Now that is a volcano. I am very much looking forward to seeing if there is a Raise Volcano spell in the game. It looks amazing.
And after seeing James May driving up to one and poking it with a stick, I wonder if human sacrifices to the great volcane could be added by using the mod tools. Take a unit you don't need, drive it to the mouth of the volcano and throw it in. In exchange the volcano rains fire over an enemy city.