Continuing along the Dinosaur Diamond, US 40 and US 191 converge within Vernal, heading west for to the city of Roosevelt. Roosevelt is located on the edge of the Uintah and Ouray Indian Reservation. Heading to the west is the county seat of Duchesne, located within the reservation. Nearby Duchesne are Starvation State Park and Kings Peak (the highest point in Utah), which is part of the Uinta Mountain range. The Uinta Mountains are one of the few mountain ranges in the contiguous United States which run east-west, and are the highest range to do so.