Back in November of 2019, while driving back from Arizona to the wife to do one of her Iron Man races, we drove through one of the Navajo Nation Tribal Parks, Monument Valley Tribal Park. As a runner, my wife wanted to get a shot of her running up the Forest Gump hill, while as a geologist, I just like looking at the pretty rocks.
|Slightly downhill from us but essentially the same view in Forest Gump
|Monument Valley geology. Image courtesy of the UGS.
The Shinarump, is part of the Chinle Formation, a Late Triassic (~225 million years old) yellow-grey river-deposited sandstone and conglomerate.