Shi'al was a province on Vulcan. This region was a region noted for its contrasting features unlike that of Tat'sahr. As it was on the equator, it was known for several different forms of climate. By the northern border with Tat'sahr, harsh deserts made up the region known as Cheleb-khor. On the east, there was a terrain of rolling hills which run down to the Thanor Sea. Many types of animal as well as plant life were seen here which was different compared to other places on the Vulcan homeworld. In the south was the path towards the oasis at ShirKahr where some of the oldest trees in the world were capable of surviving despite the conditions.