Iron Peaks and Rusted Coast

Few sentient creatures make their home in the Iron Peaks or the Rusted Coast, as the shifting landscapes makes it almost impossible to truly settle down in. Mountain ranges seem to amass and disappear over the course of several days. Even rivers and lakes form and disappear without warning, leaving aquatic life stranded to die. Worse still, aggressive creatures seem to wander over from the Beastland Wastes and end up getting trapped like a cornered wild animal. 
The Rusted Coast sloughs off tonnes of corroded metal into the ocean each day, as the shifting landscape pushes the tarnished masses into the water. But within these large chunks of planescape that falls into the abyss, untouched and pristine gemstones and rare metals may be found, and thus daring seekers may find a trove of riches on the brink of going into the depths if they are brave enough to reach for it.