Standing like a line of tired sentinels a few hundred miles east of the isle of Waverly, the Mountains of the Sun are almost buried in silt. The range is very old and no longer has the jagged edges and sheer cliffs of younger ranges such as the Ringing Mountains. Deep passes of silt separate the individual peaks; each rises a few hundred to a few thousand feet above the dust. From the highest mountains in the center of the range, a traveler can see an endless ash storm far to the east in the middle of the Sea of Silt.
The Mountains of the Sun have few sources of water. Some of the older peaks support a few acres of sparse scrub along their leeward sides, but most are barren. Thousands of years of isolation from the mainland, coupled with the lack of water, have weeded out all but the hardiest inhabitants. The small number of peaks that can support life attract powerful flying monsters such as wyverns or rocs. Resilient goats and erdlus survive on some of the larger mountains. In the caves that crisscross the oldest peaks lurk degenerate tribes of hejkins and colonies of monstrous spiders.