(Art credit: The Himalayas by Sujata Singh)

The Kosmosi Mountains the the tallest and greatest mountain range on Abmarah, bisecting Aurial from north to south. Legend says that the world began from these mountains, hence them being named after Kosmos. While they are the most highly elevated range, they are not the longest range of the world, second only to the Lueni Range of Eteru. The Kosmosi Mountains divide Aurial into two hemispheres, and are often called the 'Center of the World'. The prime meridian of Abmarah is marked by these mountains, dividing not just Aurial but the entirety of Abmarah into the western and eastern hemispheres.

The tallest mountain in the world is also the most central peak of the range, Mt. Crownpeak (Kroonspitze) at 10,302 meters. The mountain is sacred for various cultures of Aurial, as many people believe that Abmarah was created from this mountain as its center by Elder Kosmos. The mythologized temple of creation is supposed to be at the top of the mountain, although it is not visible from the surface or even from the sky in reality. Around 5,000 meters up its slope lie the ruins of the old Omniborn city of Xeycaria. The ruins are now used as a base camp for mountaineers and explorers daring to summit Kroonspitze, which has only been summited a few times in recorded history. Even the local expert goliath clans have trouble climbing this mountain, as though they do resist cold temperatures the lack of oxygen above 8,000 meters in addition to dangers such as high winds, unpredictable weather, moving glaciers, towering seracs, and deep crevasses make the climb incredibly difficult even for species suited to high altitudes. The southern end of the range also contains Mt. Zinthathaar at 8,124 meters tall which is also a primordial door to the Elemental Plane of Air.

(Art credit: Alexey Golovin)

The Vale of Alph, named after the goddess Alphus, is one of the major routes through the mountains. This large valley goes bisects the southern half of the mountains almost entirely, connecting the Lunar Collective to the Crimson Empire. The city of Dobuka sits in the middle of the two countries at the heart of this valley. The western end of the valley is heavily forested, a route often known as the Alphwoods.