The Colorado Plateau somehow has avoided all the tectonic activity around it over hundreds of millions of years. Is it just luck, or is there something about that chunk of crust? I have toured the region, and the exposed rocks are mostly horizontal sedimentary strata. On the other hand, the plateau is bounded by mountainous regions, including the Basin and Range, the Uinta mountains, the Rockies, and the volcanic San Juans. Yes, the plateau has been uplifted, but somehow it appears to have done so as a unit and without mountains forming. The relief is due to erosion. Now, I am curious about geology, but I am by no means a geologist, so I may be misusing the terms, but I hope you can understand my question.