| Many narrow valleys run along its sides, such as , and a group of towns lie on its central section, including the capital, | The escarpment can be thought of as a narrow plateau, though the locals refer to it as a jebel "mount" |
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| Petroleum geology The Arab-D unit of the Riyadh Group makes up one of the largest in the world | The capital lies just beyond the horizon |
used the name "Tuwayr Mountains" to describe mountains of central Arabia, distinct from the in the north, the in the south, and to the east.
18| Bureau and Saudi researchers conducted a high-resolution LIDAR survey of Middle Jurassic outcrops of the Tuwaiq Mountain limestone along the Tuwaiq Mountain Escarpment near the city of , | This study was a first step towards building a quantitative 3-D geologic model for use as an analog to the lower Arab-D reservoir |
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| Many settlements have historically existed on either side of it as well, such as those of and Al-Washm | High-precision laser scans were used as a template upon which stratigraphic interpretation were made allowing researchers to characterize sub-seismic, flow-unit scale reservoir properties of Jurassic bioherms in an effort to better understand optimum production techniques of this enormous reservoir |