Mount Ferovax
This mountain is part of the range which boast "White Plume Mountain" and has has been significantly less active through the centuries. A young red dragon named Ferovax claimed it as his lair sometime in the early centuries of Burn's Sleep and has long plundered and occasionally terrorized lands around it ever since. Recently the volcano irrupted extraordinarily violently, turning thousands of miles around it into burning, ash-ridden wasteland essentially cutting off the Greenest and other settlements from the western pass of Eldain Mountains.