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Dinosaur Diamond Prehistoric Highway

125 South 600 West

Price, UT 84501
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More than just a "prehistoric highway," the 512-mile loop takes you through colorful canyons filled with ancient rock art, towns both historic and prehistoric,some true national treasures, and some of the best outdoor recreation in the world.

Recognized as one of the richest paleontological areas in the world, the mesas and canyons of western Colorado and eastern Utah are just the place to let your imagination run with the dinosaurs.

There are hotels, motels, and RV parks along the route in the various communities.

Customizable Directions

Formatted Directions

Basic Directions

This byway begins at the junction of Hwy. 6 and Hwy. 191.Travel on 6/191 to Green River and then connect with I-70 and travel to Hwy. 139, then travel to Hwy. 64 and on to Hwy. 40 into Vernal. At Vernal you will then travel on 40/191 through Roosevelt to Duchesne and then turn onto Hwy. 191 and travel through Duchesne Canyon back to Hwy. 6 in Price Canyon and the loop is completed.
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