Chad and Sal about to receive 3rd degree burns
Collecting fossils in Kansas
Sunset in Arches National Monument
Students describing a therapod dinosaur trackway
A wall of sauropod dinosaur bones at Dinosaur National Monument
A sauropod dinosaur leg bone - large human (Sal) for scale
Yes Alex, this is a rock
Delicate Arch - Arches National Monument, Utah
The rarely seen underside of Delicate Arch
Bill and "Hollow Bones" climbing around on the Navaho Sandstone in
Canyonlands