The bright green on the rock is what I can call a young rockeater. The light grey-green growth adjacent to the bright green is mature rock eater. The cactus at the lower left is what I call hedge hog. It can produce a large vermillion flower.
Just checking photos of bighorn sheep scat on line and suspect that I have seen an considerable bit of it on these walks. Have also seen one very good hoof impression.
Believe that I have also seen one largish cat print with nice round chubby pads and no claw marks.