While in the Vernal, UT area we visited the Dinosaur National Park. It’s an interesting park that spans the border between Utah and Colorado.

The park has lots of interesting geology as well as dinosaur fossils and petroglyphs. The dinosaur fossils in one area on the side of a hill were extracted to a certain point and the dinosaurs, several fairly complete, were sent to museums. At the point where the extractions halted, the whole hillside shows fossils ‘in relief’ meaning they were partially uncovered but left in the hillside quarry, and the whole hillside was protected by building a structure around the hillside to protect it from the elements and a two-story viewing platform was constructed so visitors could see the fossils as they rest in the hillside. The multitude of fossils and the proximity of so many types of dinosaurs all mixed up together indicate that a heavy rain or even flood washed dead dinosaurs downstream and they got jumbled up in a kind of logjam.

The petroglyphs are from the Fremont people who occupied this area of the country around 1,000AD. They hunted and grew crops and their descendants, the Ute people, continued to live in this area until they were forced onto reservations.
Here are pictures we took of the fossils in the quarry, petroglyphs and geology of the area: