Great flat plains encrusted with salt that is white, brown, or black, salt flats can extend for miles. Some are dotted with briny marshland, but most are barren and lifeless. Any water is usually too brackish to drink and might be poisonous. Salt flats offer no shelter, and the temperatures reach more brutal extremes than anywhere else on Athas. Sun sickness can kill an unprotected traveler caught in a salt flat.
If the salt flats have one asset, it’s that no creatures linger in them for long. A prepared traveler can cross a flat without risking an encounter with a wild beast or roving band.