Vale of the Spine

The Vale of the Spine is a towering ridge of mountains located in the Outlands. It starts near the plane of Baator and creeps spireward almost to the River Ma'at. A smaller spur of the mountain range separates for a brief space into two parallel ridges, forming a tight valley between them. The narrow peaks of each ridge curve inward, looming over the valley like the ribs of some insanely-huge (and thankfully-dead) beast. The town of Ribcage is tucked neatly into this space, filling it entirely.

Note: The Vale of the Spine originally appeared in the A Player's Primer to the Outlands AD&D supplement from TSR. Its use here is for the purposes of providing context for the campaign only.