Without having said what this was an image of, it's difficult to know. It could just as easily be a shot of some metamorphosed rock or perhaps the bark of a tree.
It's said that the eye is immediately drawn to red items. I think that's certainly the case in this image where I find my eye is immediately drawn to the Dr. Pepper can. But what I find even more curious is the total absence of Coca-Cola cans. I've looked over and over but don't see a single one.
I spotted this particular specimen having left Grand Canyon West, gotten back onto Pierce Ferry Road, and heading north to Pearce Ferry and South Cove. In the background of this shot is Grapevine Mesa.
It's called Guano Point because some intrepid explorer noticed a bunch of bats flying in and out of caves in the canyon walls. So they set up an operation, building gantries at the top of the canyon and scaling down the cliffs to the caves, so they could harvest the guano.
The Skywalk is built on Eagle Point and the rock formation in the center of this image is why it has that name.
Here's a wide angle view of the Grand Canyon Skywalk