Skyfall Volcano!
It was located in the southwest of the Southern Wasteland. It occupied an area twice the size of Earth. There were tens of thousands of volcanoes that erupted every day.
Especially the nine super volcanoes in the center of the Skyfall Volcano. Every time they erupted, they could affect the entire Southern Wasteland. If it were not for the formation that the Sacred Flame Sect had set up to suppress them, at least half of the Southern Wasteland would have been submerged in lava.
It was precisely because the Sacred Flame Sect suppressed the Skyfall Volcano that even though they were overly extreme in their daily actions and were sometimes no different from the demonic path, they were still known as one of the two righteous paths in the Southern Wasteland.