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World Mountain

by Robin

As to World Mountain (formerly Known as Mount Ethesh)
There are as far as I could find (and I delved through all the Gazetteers, Trailmaps and the Almanacs) no canon sources for the height of the volcano. As I asume it mimicks Real world Ol Doinyo as explained earlier, I will follow those statistics. making World Mountain 10.459 ft (3188 m ) as the platau of Ethengar is set canonnically at an average of 3800feet (3800 NW, 4000E, 385SW, 3900SE, 4400N+NE, between 3300 and 400 W, between 3800 and 400 S), the mountains thrusts an average of 6500 feet above the grasslands...a real domineering sight.
The map thus far is here, but like the other map it is under heavy construction
Although I have to wait for additional input and the historic details of Chimpman, I succeeded to make a geological sane base. when these are available, I'll add these to the map(s).
Any additional ideas, please share

Whereas most lavas are rich in silicate minerals, the lava of World Mountain is a carbonatite. It is rich in the rare sodium and potassium carbonates, nyerereite and gregoryite. Due to this unusual composition, the lava erupts at relatively low temperatures of approximately 510C (950 F). This temperature is so low that the molten lava appears black in sunlight, rather than having the red glow common to most lavas. It is also much more fluid than silicate lavas, often less viscous than water. The sodium and potassium carbonate minerals of the lavas erupted at the World Mountain are unstable at the Mystara's surface and susceptible to rapid weathering, quickly turning from black to light grey grey in colour. The resulting volcanic landscape is different from any other in the world.

The carbonatite ash spread over the surrounding grasslands leads to a uniquely succulent, enriched pasture. This makes the area a vital stage on the local grazers, enabling rich grounds to become the nursery for the birth of several thousand young each year.