Vernal is situated in eastern Utah, on Hwy 40 near the Wyoming and Colorado borders, in Ashley Valley. It is the gateway to both the Dinosaur National Monument, 20 miles east, and the Flaming Gorge National Recreational Area, 35 miles north. The geology of the region makes it of interest to dinosaurs lovers and geologists alike.

Vernal is bordered on the north by the Uinta Mountains, the largest east-west trending mountain range in the Western Hemisphere. The Book Cliff Mountains to the south are a spectacular view, complimented by the Blue Mountains to the east. It is bordered on the south by the Book Cliff Mountains and the Blue Mountain on the east.