dinosaur national park - utah - vernal

abydosaurus adventure albertosaurus allosaurus alluvial america badlands canyon colorado dakota deinonychus dinosaur dinosaurus dragons environment formation fossils geology gorgosaurus jensen jurassic landscape monster monument morrison mountain mountains mussentuchit national natural nature northeastern outdoors paleontological paleontology park quarry recreation river rock sandstone sauropods scenic south states tourism tourist travel tyrannosaurus uinta united usa utah vacation valley vernal visiting