I once saw a space alien on Star Trek that looked like this fellow, really.

Along the trail out to Landscape arch.

Landscape Arch, my favorite rock formation anywhere. The underneath of the left side of this arch collapsed in the 1990's. Some day the arch will fall and I will hate it.

The trail going back to the car.

Panels next to the track-way.

Here we see Camarasaurus footprints coming across the field of view. The Camarasaurus makes are sharp right turn coming toward the camera position. It was being chased by an Allosaurus, a meat eating dinosaur that could run 30 miles an hour. A Camarasaurus is also known as a Brontosaurus and this one weighed about 18 tons. The Allosaurus weight about 1.5 to 4 tons. There are two set of Allosaurus tracks so they hunted in groups, interesting. One of the Allosaurus tracks had uneven space between steps which indicates a leg injury to one of the Allosaurus. They no doubt jumped the Camarasaurus and had dinner.

A Camarasaurus foot print.

The Colorado River about 20 miles upstream from Moab.