The restaurant where my friends and I had our Wednesday beers & a bite, has old car licence plates for the covers of the menus. I was not sure what the rock image on the Wyoming plate was called, and had to look it up.
It’s Devil’s Tower, located in the north-eastern corner of Wyoming. Geologists still debate exactly how the structure was formed, described as a laccolithic butte composed of igneous rock. In plain English: an isolated hill with steep sides and a small, relatively flat top, formed by magma pressed into sedimentary layers and then pushed upwards.