Ranger Robb:
Therapod Track, Mill Canyon Dinosaur Trackway, Grand Co, UT
Ranger Robb:
Sauropod Track, Mill Canyon Dinosaur Trackway, Grand Co, UT
Ranger Robb:
Hadrosaur Track, Mill Canyon Dinosaur Trackway, Grand Co, UT
Ranger Robb:
Dinosaur track, Mill Canyon Dinosaur Trackway, Grand Co, UT_1
Ranger Robb:
Dinosaur track, Mill Canyon Dinosaur Trackway, Grand Co, UT
Ranger Robb:
Crocodile slide track, Mill Canyon Dinosaur Trackway, Grand Co, UT
Ranger Robb:
Fossil Track, Indian Creek, Bear's Ears NM, UT