The great glacier on this layer is one of the few level places there for the Tanar'ri and Baatezu to fight, so fight they do. It's a treacherous place full of mudslides and unexpected crevasses, moving as much as 30 feet in a day. Yet it's better by far than most of the alternatives.
The "burning" part of the glacier's name refers to acid. Just saying.
Hellbound: The Blood War