Sprawling out northeast from the riverlands is the Sandwaste, one of the most inhospitable and unforgiving regions in the desert lands. A stretching expanse of barren flatland, the Sandwaste is a mix of ash and greying sand, and the little soil that exists is loose, grainy, and cursed with salt. The Sandwaste is almost completely flat but there are areas of rocky terrain that reveal openings to underground caverns. The southern reaches of the sands shatter upon The Wasting Crags, a terrible range of sharp, jagged mountains bleached white and caked with salt. There is virtually no water or plantlife on the surface, but the networks of underground caves are more hospitable, hosting subsurface streams, springs, and plantlife. The Sandwaste is notably not as hot as the Dunes of Endless Sun or the Scablands, but it is considerably drier, and many unfortunate travelers have died as withered husks by forgetting to hydrate due to the lack of heat.
The Sandwaste is home to countless insects mundane and magical, thoughtless and sentient. They keep cool and nourished in the more hospitable places beneath the surface and rise to the top to travel and hunt. The land is infamous for its monstrous scorpions, some of which are said to be so large that they could grip an elephant in each pincer. Sentient scorpion-creatures also roam the wastes, known to most as ‘scorpion-men.’ The tauric creatures and cross between human and scorpion and take the most vicious qualities from each. They continuously prey upon the thri-kreen who compete with them over resources. The thri-kreen mainly mine salt from underground caverns and from the Wasting Crags, which they trade to the denizens of the river lands. They also trade with the peoples of the west in the Seareach Plains, the same people that the scorpion-men raid and capture.
The Sandwaste is also home to purple worms and ash worms as well as undead said to have been created by a foul magic that stains the land from below. It is also rumored that secretive cabals of humanoid spellcasters reside in these parched lands, though for what purpose no one is certain.